up the picture is up the pitch · left to right is time.
spectrogram art additive resynthesis · 44.1 kHz
quiet loud
Scribble anything. Thick horizontal strokes are drones, vertical strokes are clicks, a diagonal is a swoop, and dots make melodies. Pentatonic snaps every row to a scale so nothing you draw can sound wrong; switch to Continuous when you want it to. Save to 44.1kHz 16-bit .wav. Space plays.