Re: playing music with GP

Hmmm, Hans, your script works great, but there seems to be a mild 
dissonance, due to the scale of octave being used. Are you using 
chromatic scale? I am curious, because the exact tones don't match my 
orchestral memory of those tones in "Ode to Joy"


On 7/9/25 22:51, Hans L wrote:
> Very interesting usage of pari.
> For fun I added a basic ADSR envelope 
> https://en.wikipedia.org/wiki/Envelope_(music)#ADSR
> This gets rid of the pops between notes (without a "release"/fade-out, 
> previous notes are interrupted at any point mid-sine-wave causing 
> sharp transitions) and adds a little more character to the sound.
>
> And of course I recognize Ode to Joy :)
>
> -Hans
>
> On Wed, Jul 9, 2025 at 4:15 PM Bill Allombert 
> <[email protected]> wrote:
>
>     Dear PARI lovers,
>
>     I have written a GP script to play music using GP (really play
>     music, not just sending MIDI data).
>
>     One need the "aplay" alsa utility. the instrument is the formula
>     in the playnote
>     function.
>
>     If you use the latest GIT version, you can use the first "start"
>     function
>     instead of the second one.
>
>     Can you recognize the music (without reading the score) ?
>     (Sorry in advance for any error in the score)
>
>     Cheers,
>     Bill.
>