This is a very interesting way to draw music, lately i have done some experiments with something akin to the Russian ANS synthesizer which was a photoelectronic

This is a very interesting way to draw music, lately i have done some experiments with something akin to the Russian ANS synthesizer which was a photoelectronic synthesizer where the sound spectrum was sketched onto glass disks, in my program all is driven by visuals produced by a GPU fragment shader, one can use a webcam as a texture to replicate something akin to the ANS workflow where you draw the sound spectrum although it is much less limited, one could also capture a painting software and feed their drawing in realtime. The synthesizer is available here : https://www.fsynth.com https://www.fsynth.com