Steve Reich - Piano Phase; interpreter: Bourne-Again Shell.

phase() { while :; do for n in E4 F#4 B4 C#5 D5 F#4 E4 C#5 B4 F#4 D5 C#5; do /usr/bin/play -qn synth $1 pluck $n; done; echo -n "[$1]"; done; }; phase 0.13 & phase 0.131 &
The Piano Phase piece, by Steve Reich is a minimalist composition which is played on two pianos played at slightly different tempos, a task that's very difficult to accomplish by human players. The auditive effects produced by the cell displacement produce beautiful patterns. See https://en.wikipedia.org/wiki/Piano_Phase . My rendered version: https://ydor.org/SteveReich/piano_phase.mp3 Requires sox to be installed on the system. There are multiple videos on youtube showing different approaches and experiences to this interpretation. There is also a synthesized version. Even if Bash can behave as a powerful pianist, a simple threaded version leaves full room to several time glitches and even negative displacements, the same issues that human pianists experience when playing the piece. The older the computer, the better the chaos added to the result due to the CPU load. Apparently that's the reason Steve Reich composes pieces such as this. Without further ado, please give a warm welcome to the Bash minimalist player on synthesized two-threaded pianos. Please turn off your cellphones.

0
By: rodolfoap
2017-06-14 20:29:26

What Others Think

Cool but where I can find /usr/bin/play and phase?
leoheck · 56 weeks and 5 days ago
Sorry, right. /usr/bin/play is installed by sox on my debian system, and phase is the defined function. To be corrected.
rodolfoap · 56 weeks and 5 days ago
Cool man, thanks. On Ubuntu I had to "sudo apt install sox" to get the play bin.
leoheck · 56 weeks ago
Cool man, thanks. On Ubuntu I had to "sudo apt install sox" to get the play bin.
leoheck · 56 weeks ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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