I wrote a lugubrious melody for the Sidstation synthesizer and the digital recorder drew this rather pleasingly proportioned wave (it's the LFO sweeping the cutoff filter, I think, that makes it so fat--the actual notes are buried in the zigzag). Captured in a couple of .wav-editors and got the black and blue images.
The sound it's making is here: [1 MB monaural .mp3]
By the way, note to PS and JP: I was wrong about editing patches in the Sidstation, you can hear the changes as you're making them. This one is a preset, though ("tel-lead").