I'm a professional composer and amateur programmer. I've been trying to write a Quine in Velato, but seems impossible to me. Source code in Velato are MIDI files, but output is plain text. In order to create a Quine you must design a MIDI that outputs text pseudo code (in Guido, Lilypond, etc. notation) which, when converted back to MIDI will yield the original Midi file. However every print char command in Velato requires at least 8 notes (in MIDI). So there's not a 1 to 1 correspondence like in other programming languages Quines. I'm no computer scientist here but this seems impossible to me.