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Visualizzazione post con etichetta jazz. Mostra tutti i post
Visualizzazione post con etichetta jazz. Mostra tutti i post

domenica 22 dicembre 2024

# life: apropos of impossible predictions, Lewis & Jackson (mjq) dipole, a bizarre form revisited



<< Qui un kernel di creativita' invece di autogenerarsi all'interno di un sistema cognitivo individuale emerge e si stabilizza grazie all' interazione cooperativa a lungo termine tra due personalita' ... >>
<< Qui si potrebbe introdurre un ulteriore elemento di impredicibilita'  (..) quasi una meccanica a metano protonato, per dire ... >>
2124 - attrattore cooperativo bipolare (nell'elastici spigoli). Notes. (quasi-stochastic poetry). Mar 05, 2007.

Also: mjq, all the things you are (jazz night). 

Also:  << Musk was indispensable to Trump’s campaign this year, endorsing the former president before pouring more than $100 million into the effort to elect him. Now he’s serving as one of Trump’s closest advisers, staying overnight at Mar-a-Lago and attending virtually every high-level meeting by his side. There are reports that he’s effectively living at the club. All of that was already inspiring headlines last month like, “Elon Musk may already be overstaying his welcome in Trump’s orbit.” >>

Eddie Scarry. Here’s How e Media Are Lying Right Now: Fake Trump-Musk. thefederalist.com. Dec 19, 2024.️

Also:  << In meno di tre giorni Elon Musk è riuscito a portare il governo degli Stati Uniti a un passo dalla chiusura e a interferire con le imminenti elezioni tedesche. Il tutto senza alzare gli occhi dal suo telefonino. È con un tweet sul social X ... >>️


Also: jazz, RAG-time, Mr. Donald, in https://www.inkgmr.net/kwrds.html 

Keywords: gst, jazz, RAG-time, Mr. Donald, Mr. Elon


martedì 5 novembre 2024

# gst: taming uncertainty, a tutorial by NaN et Al.

<< All models are wrong, but some are useful. >>. George Box. ️

Nan Chen, Stephen Wiggins, Marios Andreou. Taming Uncertainty in a Complex World: The Rise of Uncertainty Quantification - A Tutorial for Beginners. arXiv: 2408.01823v1 [math.DS]. Aug 3, 2024. 

Also: NaN 'Not a Number'. In: Onda pneica. Apr 10, 2005 (quasi-stochastic poetry) https://inkpi.blogspot.com/2005/04/1694b-onda-pneica.htmlnan(). In: Linux manual. https://www.man7.org/linux/man-pages/man3/nanf.3.html

Also: << Amico, qualunque  cosa suonerai . . . >>. Jelly Roll Morton. In: Soniche a ramulo. Jan 28, 2007 (quasi-stochastic poetry). https://inkpi.blogspot.com/2007/01/2113-soniche-ramulo.html  

Also: uncertainty, Mr. Jelly Roll Morton, jazz, in https://www.inkgmr.net/kwrds.html 

Keywords: gst, uncertainty, Jelly Roll, jazz


domenica 3 novembre 2024

# life: Potus race, Kamala knows her jazz

<< a video showing Harris emerging from a record store in Washington DC has recently gained massive traction on social media. The footage, taken in May 2023, shows her engaging with journalists while displaying and talking about the records she had purchased. This video clip was notably shared and reposted among the European jazz community – not people you’d necessarily think would be hugely interested in the musical tastes of US presidential candidates. >>

<< Harris’s purchases included three classic jazz albums by notable African American artists: Charles Mingus’s 1972 album Let My Children Hear Music, Roy Ayers’ 1976 Everybody Loves the Sunshine, and the 1959 collaboration of Ella Fitzgerald and Louis Armstrong on Porgy and Bess. >>️

<< Liking and knowing jazz, in some circles at least, suggests sophistication, intellectualism, and a leaning towards advocacy for cultural unity through diversity. The improvisational and creative elements found in jazz might also translate to a degree of flexibility in her politics. >>

<< The love of music is not necessarily an electoral strategy. But it would be interesting to find out which approach resonates most with voters ahead of the coming US election: scattergun and with no particular demographic focus, or targeted and consistent. >>

Haftor Medbøe, Jose Dias. US election 2024: Kamala Harris knows her jazz – why this could count with voters. theconversation.com. Aug 9, 2024.

Also: jazz, RAG-time, in https://www.inkgmr.net/kwrds.html 

Keywords: life, potus, potus race, jazz, RAG-time

domenica 27 ottobre 2024

# life: landing on a swinging perch: peach-faced lovebirds (Agapornis roseicollis) prefer extremes.


<< Birds frequently must land safely and accurately on moving branches or power lines, and seemingly accomplish such maneuvers with acrobatic precision. To examine how birds target and land successfully on moving supports, (AA) investigated how peach-faced lovebirds (Agapornis roseicollis) approach and land on a swinging perch.  >>️

<< In support of (AA) hypothesis for stable landings, lovebirds timed their landings in a majority of trials (51.3%), when the perch was approaching either extreme of its motion with its velocity nearing zero (27.5% in the same direction as the bird’s approach – SDs, and 23.8% in the opposite direction to the bird’s approach – ODs). As a result, lovebirds exhibited a robust bimodal strategy for timing their landing to the phase of the swinging perch. Less commonly, lovebirds landed when the perch was moving at high velocity either toward the bird’s approach (12.3%) or in the same direction as the bird’s approach (11.5%); with the remainder (21.9%) of trials distributed over a broad range of swing phases. >>️

Partha S Bhagavatula, Andrew A. Biewener. Landing on a swinging perch: peach-faced lovebirds prefer extremes. biorxiv.org. Oct 8, 2024.

Also: behav, birdsextreme, jazz, Mr. Jelly Roll Morton, in: https://www.inkgmr.net/kwrds.html 

Keywords: life, birds, extreme,  behavior, behaviour, jazz, Mr. Jelly Roll Morton


lunedì 19 agosto 2024

# gst: apropos of 'normal' (jazzy?) codes, bacteria encode hidden, free-floating genes outside their genome.

AA << show that bacteria break that rule and can create free-floating and ephemeral genes, raising the possibility that similar genes exist outside of our own genome. >>️

<< What this discovery upends is the notion that the chromosome has the complete set of instructions that cells use to produce proteins, (..) We now know that, at least in bacteria, there can be other instructions not preserved in the genome that are nonetheless essential for cell survival. (..) The DNA molecule is a fully functioning, free-floating, transient gene. >> Samuel Sternberg. 

Bacteria Encode Hidden Genes Outside Their Genome—Do We? Columbia University Irving Medical Center. Aug 8, 2024. 

Stephen Tang, Valentin Conte, et al. De novo gene synthesis by an antiviral reverse transcriptase. Science. doi: 10.1126/ science.adq0876. Aug 8, 2024. 

Also

Keywords: gst, codes, dna, rna, crispr, normal, jazz


venerdì 10 maggio 2024

# music: masters of noise, Frank Zappa plays bicycles


Frank Zappa teaches Steve Allen to play The Bicycle (aired March 3, 1963).

<< This televisual gem inspired me follow along which got me into endless trouble at family picnics and barbecues for playing my own symphonic masterpieces which, for some strange reason, nobody else seemed to enjoy. I extended Frank's genius to my exploration of the vacuum cleaner, ping pong balls and paddles, (..)  The next time you're out in a forest I challenge you to explore the musical nature of nature for yourself. Trees make great drums and often ring with higher tones - not to mention the musical benefits of rocks and stones. >>️️
That Hairy Canadian. Jun 21, 2014. 

Also: music, jazz, noise, error, in https://www.inkgmr.net/kwrds.html 

Keywords: music, jazz, noise, error


sabato 27 aprile 2024

# ethno: cross-cultural comparison of rhythm priors in 15 countries.


<< Music is present in every known society but varies from place to place. What, if anything, is universal to music cognition? (AA) measured a signature of mental representations of rhythm in 39 participant groups in 15 countries, spanning urban societies and Indigenous populations. >>️

Their << results suggest a common feature of music cognition: discrete rhythm ‘categories’ at small-integer ratios. These discrete representations plausibly stabilize musical systems in the face of cultural transmission but interact with culture-specific traditions to yield the diversity that is evident when mental representations are probed across many cultures. >>️

Nori Jacoby, Rainer Polak, et al. Commonality and variation in mental representations of music revealed by a cross-cultural comparison of rhythm priors in 15 countries. Nat Hum Behav.  doi: 10.1038/ s41562-023-01800-9. March 4, 2024. 

Also: ethno, music, jazz, behav, in https://www.inkgmr.net/kwrds.html 

Keywords: ethno, music, jazz, behavior


martedì 27 giugno 2023

# gst: laminar and turbulent flows detected in music, a fluid framework approach

<< The relationship between musical material and physical phenomena has become a topic in the musicological literature over the last several decades, particularly concerning elements of the musical system itself, and constructions found in the work of contemporary classical composers such as Gyorgy Ligeti and Iannis Xenakis. Most scholars, who adopt this approach, explore the physical phenomena of fractals in the analysis of musical works, but fluid mechanical frameworks, such as laminar and turbulent flows, offer a new avenue to be explored. In this paper (AA) will propose a novel method of musical analysis for examining musical structures in terms of fluid-like behaviour such that Ligeti etude no. 9 serves as a model, whereby the metaphors of laminar and turbulent flows take precedence. >>

Noah Chuipka. Musico-acoustic Depictions of Laminar and Turbulent Flows in Ligeti Piano Etude No. 9 and a Novel Method of Analysis. arXiv: 2306.10093v1 [cs.SD]. Jun 17, 2023. 

Also: music, jazz, turbulence, in https://www.inkgmr.net/kwrds.html

Keywords: gst, music, jazz, turbulence


domenica 14 maggio 2023

# jazz: when turbulence underneath it and on top of it.


<< The album title comes from poet and scholar Fred Moten, who described Gamedze's drumming in the internet forum Poesis as an "amazing interplay between turbulence and pulse. Pulse is supposed to regulate and also be regular, but the turbulence underneath it and on top of it, it's just extraordinary." >>️

Thom Jurek. Turbulence and Pulse. allmusic.com. May 5, 2023. 

Also: jazz, turbulence, in  https://www.inkgmr.net/kwrds.html

Keywords: jazz, turbulence



domenica 30 aprile 2023

# jazz: that was his backup band.

<< Before Belafonte (Harry Belafonte)  could even open his mouth he was joined onstage by bassist Tommy Potter, drummer Max Roach and saxophonist Charlie Parker. Unbeknownst to the young newcomer, the all-star quartet wanted to make sure his first gig was a success. >>

<< “That was my backup band,” Belafonte remembered of the surreal experience. “A little bit later Miles Davis stepped in somewhat reluctantly, but he didn’t want to miss anything … he didn’t miss much anyway. But this is how I was launched into the music business.” >>️

Keith Murphy. Harry Belafonte’s singing career started as an intermission filler at a jazz club.  Only a few years later, he became the first solo artist to sell a million copies of a record. @murphdogg29. April 28, 2023 

<< By the 1950s, Belafonte was also singing, finding gigs at the Blue Note, the Vanguard and other clubs — he was backed for one performance by Charlie Parker and Max Roach — and becoming immersed in folk, blues, jazz and the calypso he had heard while living in Jamaica. >>

Hillel Italie. Harry Belafonte, activist and entertainer, dies at 96. April 25, 2023. 


Keywords: jazz, life

martedì 21 marzo 2023

# behav: even the first asynchronous decisions might tend to be correct and exhibit information cascades.


<< It is usually assumed that information cascades are most likely to occur when an early but incorrect opinion spreads through the group. Here (AA) analyse models of confidence-sharing in groups and reveal the opposite result: simple but plausible models of naïve Bayesian decision-making exhibit information cascades when group decisions are synchronous; however, when group decisions are asynchronous, the early decisions reached by Bayesian decision makers tend to be correct, and dominate the group consensus dynamics. Thus early decisions actually rescue the group from making errors, rather than contribute to it. (AA) explore the likely realism of our assumed decision-making rule with reference to the evolution of mechanisms for aggregating social information, and known psychological and neuroscientific mechanisms. >>️

Andreagiovanni Reina, Thomas Bose, et al.  Asynchrony rescues statistically-optimal group decisions from information cascades through emergent leaders.  bioRxiv. doi: 10.1101/ 2022.04.05.487127. Feb16, 2023.

Also

'asynchronous' in FonT
'game' in FonT
'behav' in FonT

Keywords: behavior, behaviour, game, decision-making, synchronous- asynchronous group decisions, social interactions, information cascade, life, jazz


giovedì 19 gennaio 2023

# gst: an approach to information content in the music of J. S. Bach

<< Music has a complex structure that expresses emotion and conveys information. Humans process that information through imperfect cognitive instruments that produce a gestalt, smeared version of reality. What is the information that humans see? And how does their perception relate to (and differ from) reality? To address these questions quantitatively, (AA) analyze J. S. Bach's music through the lens of network science and information theory. >>

They << find that Bach's music is structured for efficient communication; that is, it communicates large amounts of information while maintaining small deviations of the inferred network from reality. >>

They << probe the network structures that enable this rapid and efficient communication of information -- namely, high heterogeneity and strong clustering. (..) More generally, (they) gain insight into features that make networks of information effective for communication. >>

Suman Kulkarni, Sophia U. David, et al. Information content of note transitions in the music of J. S. Bach. arXiv: 2301.00783v1 [physics.soc-ph]. Jan 2, 2023. 

Also

keyword 'music' in FonT


keyword 'jazz' in FonT


keyword 'jazz' in Notes 
(quasi-stochastic poetry)


Keywords: gst, music, jazz, information theory, note transitions, Bach








domenica 20 novembre 2022

# jazz: Zakir Hussain (tabla), Niladri Kumar (sitar). Krannert Center for the Performing Arts, Urbana, IL, USA. Nov 16, 2022.

<< Classical Indian music and jazz have much in common, Hussain (Zakir Hussain) said. Classical Indian music “encourages spontaneity and onstage twists. You try to tell the age-old story with a new twist, with a new drama, a new exclamation mark,” (..) “Jazz allows you the ability to interact as an individual, taking a piece of music and creating your vision of it. You’re training to be spontaneously creative. Indian music is the same way. That’s why you see so many Indian musicians collaborating with so many jazz musicians from all over the world,” Hussain said. His father (Ustad Alla Rakha) recorded one of the first fusion records with Indian and jazz drummers. >>️

Jodi Heckel. Tabla virtuoso Zakir Hussain, renowned sitar player Niladri Kumar performing at Krannert Center. Univ of Illinois. Nov 10, 2022. 


ZAKIR HUSSAIN, TABLA AND NILADRI KUMAR, SITAR. 

Also 

Zakir Hussain & Niladri Kumar

John Mclaughlin, U Srinivas, Zakir Hussain, V Selvaganesh, Mahadevan - Jazz a Vienne. The 5 Peace band - John McLaughlin (guitar), U Srinivas (Mandolin), Zakir Hussain (Tabla), V Selvaganesh (Ghatam), S Mahadevan (Vocals) perform live in Vienna. Note: This is the remember shakti lineup + S Mahadevan. The songs they play are: Caruna, Ma No Pa, Sakhi, and Giriras Sudha. May 3, 2012. 

Also

keyword 'jazz' in Notes 
(quasi-stochastic poetry)

keyword 'jazz' in FonT

keywords  '#jazz' | '#jazzy' in  @flashontrack  

Keywords: jazz, jazz fusion, indian music, sitar, tabla

domenica 13 novembre 2022

# life: Banksy, Banksy type dancers

<< Graffiti of a woman in a leotard doing a handstand is seen on the wall of a destroyed building in Borodyanka on Friday in Kyiv Region, Ukraine. Banksy later confirmed on their Instagram account that this piece was their work. Ed Ram/Getty Images >>️

<< Other new murals with a similar style have been spotted in the area and are suspected to have been created by Banksy, but the British artist has not publicly claimed credit. >>

Ashley Ahn. A new Banksy mural adorns a destroyed building in Ukraine. Nov 12, 2022. 10:56 AM ET.


Also

(-) 'danza' in Notes
(quasi-stochastic poetry)

(-) 'dance' in FonT

(-) 'vladimir' in FonT

Keywords: life, art, arts, paintings, music, jazz, dance, dancer





sabato 5 novembre 2022

# jazz: a 'Trombiverse' approach, 'hear Beethoven like you've never heard it before'


<< Trombone Champ is the world's first trombone-based rhythm music game. Unlike most music games, you can freely play any note at any time. You're not just following along with the music, you're actually playing the music! >>️

Holy Wow. Trombone Champ. Sep 15, 2022. 


Christopher Livingston. The world's first trombone rhythm game is instantly a GOTY contender. Sep21, 2022.

cit. @RhiannonJudithW. The Download. MIT. Sep 22, 2022.

FonT

a working hypothesis: anyone could summarize, filtering life-data through an artificial intelligence, the salient episodes of one's own existence through an approach of this type ... 

Also

'jazz' in FonT

'jazz' | 'jazzy' | 'funky' |  in FonT (twitter)

'jazz' in Notes 
(quasi-stochastic poetry)

'ai' | 'bot' in FonT


'ia' | 'ai' | 'robota' in Notes 
(quasi-stochastic poetry)



Keywords: jazz, life, music, trombone,  games, ai, artificial intelligence



domenica 23 ottobre 2022

# jazz: Eastside Romp. Jeff Parker (gui), Eric Revis (b), Nasheet Waits (d).

<< In May 2016, guitarist Jeff Parker, double bassist Eric Revis, and drummer Nasheet Waits spent a single day recording in a Pasadena studio. The seven tunes they cut appear on Eastside Romp. Mixed in 2018, it sat on a shelf for four more years. (..) No one except the creators know why it took six long years for this relaxed yet canny set to arrive, but its appearance adds immeasurably to the mystique and inventive creativity of these three musicians. >> Thom Jurek (T.J.)

- Drunkard's Lullaby
<< "Drunkard's Lullaby" is a group improvisation, laden with guitar effects, knotty bass vamps, and dialogic conversation between snare, hi-hat, and kick drum. Parker's abstracted soloing is saturated in distortion, and it short-circuits, staggering his already jagged lines, creating a barely restrained sense of power. The rhythm section intersects and interlocks in detailed, propulsive conversation as the guitar travels afield, adding more frenetic yet glitchy notes and layers of feedback. >> (T.J.)

- Wait
<< "Wait," the album's longest cut, was composed by the guitarist. It commences as a dirge led by Revis playing vamped chords. He establishes a circular vamp as Parker points at his changes and Waits dances limpidly on his tom-toms in 4/4. The languid lyric line crisscrosses post-bop, Spanish-tinged modalism, and blues. Parker moves between melody and angular improv as his bandmates respond with empathy, highlighting and expanding the reach of his labyrinthine harmonic lines. As a perfect complement, Waits offers a studio version of his oft-performed nugget "Between Nothingness and Infinity." Paraphrasing the title of 1973's live Mahavishnu Orchestra album Between Nothingness & Eternity, he frames a musical narrative that emerges directly out of Parker's deeply moving ballad-esque playing, adding textural airiness, rhythmic spaciousness, and harmonic depth to its melody. >> (T.J.)

- Similar Limits 
<< Opener "Similar Limits" is the set's only cover. Composed by the late alto saxophonist Marion Brown, it originally appeared on 1967's Porto Novo. The trio keep the iconic, Monk-esque intro after a brief roll from Waits. Parker and Revis play the staggered melodic intro as Waits rolls, fills, and accents all over the kit. As the bassist expands the tune's harmonic reach, Parker explores the underside with great sensitivity and swing. >> (T.J.)️

Jeff Parker, Eric Revis, Nasheet Waits. 
Drunkard's Lullaby, Wait, Similar Limits.
Eastside Romp.  Rogue Art 0113 (2022). 

Also

'jazz' | 'jazzy' | 'funky' |  in FonT (twitter)


'jazz' in Notes 
(quasi-stochastic poetry)









lunedì 17 ottobre 2022

# life: a proposito di bizzarri scenari, qui un ipotetico scenario22 dipinto dal reale ...

img: Congo Square, New Orleans, Louisiana (wikipedia.org)

In definitiva qui si configurerebbe un - intrigante assai - scenario che, grosso modo, si potrebbe sinteticamente 'dipingere' in questi termini: 

(i) entità tre palle destrogire, animate aciclicamente da interazioni attrattive- repulsive a causa di già a suo tempo disvelate pulsioni neuro cognitive arcaiche, riconducibili a visioni neuro predatorie CTZ estreme, perciò ipoteticamente (si fa per dire) a-priori ad esiti immediati e in prospettiva drammaticamente lesivi- autolesivi; 

(ii) entità tre palle levogire, animate da analoghe pulsività, purtuttavia in.forme  tenui, in modalità sottotraccia, frenate da feed-back a modalità allosterica, ombreggiate, stemperate, diluite, discrete, timidamente celate, talvolta fantasmatiche perfino, quasi ma non del tutto mai silenti, perciò anch'esse a tutti gli effetti operative, sebbene a dinamiche più fluide, lente, meno dirompenti rispetto alle destrogire; 

(iii) entrambe l'Entità destrogire e levogire animat(t)rici,  generat(t)rici di dinamiche bi-multi-forcate, transeunti, con picchi di improvvisi aciclici burst ad effetti RAG-time diretti e inversi;

(iv) lo scenario al contorno e forse anche all'interno, nei vari specifici contesti, riconducibile grosso modo alla formazione aciclica di ipotetici buchi neri non inerti, caratterizzati da aciclicità in compressione e dilatazione - come fossero fisarmoniche - animati (in perpetuo?) da multi vortici in ingresso e in uscita;

Non so se basti compulsare un manuale delle funzioni speciali per formalizzare in qualche adatto topo-modo questo pulsatile multi scenario, purtuttavia assolutamente intrigante ... 

Qui una AI operativa nella formalizzazione di analogie potrebbe modellizzare, forse ... (e.g. https://flashontrack.blogspot.com/2021/08/aibot-mechanism-of-analogy-could-be.html )

Quello che appare evidente è la complessità d'insieme, un bizzarro dipinto, uno scenario dinamico che, al confronto, le storiche danze in Congo Square potrebbero sembrare semplici, ordinate coreografie ... queste, rispetto a quelle, delle topo-forme  'primitive', per dire ed anzicheforse.

In sintesi, i riferimenti (ovviamente generici) del bizzarro scenario: 

(:) buco nero con vortici 

(:) scenari generati da 3 palle 
(a)
(b)

(:) effetti RAG-time (RAG: Ralph, Al, George) 
(a) (quasi-stochastic poetry)
(b)

(:) pulsioni predatorie supportate / giustificate da visioni neuro- post- CTZ nelle modalità arcaiche oppure friendly 

(:) Congo Square, jazz 
(a)
(b)
(c) (quasi-stochastic poetry)

(:) approccio Bertalanffy 

(:) un bizzarro tracciatore 

Anche

"Amico, qualunque cosa suonerai ... "
(a) (quasi-stochastic poetry)
(b)

Keywords: life, gst, Congo Square, jazz, Jelly Roll, transition, three-body, RAG, CTZ, black hole, bizarre tracker




giovedì 22 settembre 2022

# life: apropos of quasi-stochastic (bizarre) landscapes in high-dimension, a case of double RAG-time inside a black hole with vortices

Here a hypotetical bizarre scenario of coexistence of double RAG-time (RAG: Ralph, Al, George) inside a black hole with vortices:

(1) 
Maurizio Belpietro.Sorprese in vista. Occhio alla strana coppia Conte D'Alema. La verità. anno vii n 258 pg 1. 19 set 2022.


(2) 

Andrea Pertici. Un soccorso centrista alla maggioranza dei due terzi?  
huffingtonpost.it. 18 Set 2022  17:08


Also

keyword 'RAG' in Notes
(quasi-stochastic poetry)

keyword 'RAG' in FonT

black holes (as Q-ball-type saturons) could admit multi-vortex dynamics.
FonT. Sep 19, 2022.  

PS: really intriguing the image of a black hole with vortices ...

Keywords: life, jazz, RAG-time, RAGtime, black hole, vortex, vortices, vortexes, vorticity



domenica 19 giugno 2022

# life: sull'esportabile funky

<< E conficca nel perpetuato dall'acre stagnola //

- cauto pei prevedibili ritorni in semicroma - //

l'acustica fluida porfina che percola //

casuali pulsatili a sonda sulle tronche foniche //

d' arso d'achenio // >>

Sull'esportabile funky. Notes. Jan 25, 2006.


"Directions".  Miles Davis. "The Cellar Door Session 1970" CD6. Sony. (2005).




Also

keyword 'funky' in FonT 


keyword 'funky' in Notes 
(quasi-stochastic poetry)




mercoledì 6 aprile 2022

# astro: going beyond a performance by Frank Zappa (or a speech by – for example – a political entity), two speeds of sound found on Mars

AA << find that atmospheric sounds extend measurements of pressure variations down to 1,000 times smaller scales than ever observed before, revealing a dissipative regime extending over 5 orders of magnitude in energy. Using point sources of sound (Ingenuity rotorcraft, laser-induced sparks), (AA) highlight two distinct values for the speed of sound that are ~10 m/s apart below and above 240 Hz, a unique characteristic of low-pressure CO2-dominated atmosphere. (They) also provide the acoustic attenuation with distance above 2 kHz, allowing to elucidate the large contribution of the CO2 vibrational relaxation in the audible range. >>

Maurice, S., Chide, B., Murdoch, N. et al. In situ recording of Mars soundscape. Nature. doi: 10.1038/ s41586-022-04679-0. Apr 1, 2022. 


<< All of these factors would make it difficult for two people to have a conversation only five meters (16 feet) apart >> Sylvestre Maurice.

Juliette Collen and Daniel Lawler. First audio recorded on Mars reveals two speeds of sound. Phys.org. Apr 1, 2022. 


NASA Perseverance Rover Captures 
Puff, Whir, Zap Sounds from Mars 


Also

Frank Zappa 


image from  


keywords: astro, mars, acoustics, sound, speed of sound, dissipative regimes, music, jazz, freejazz