[jancsika]

> Though the two are unrelated in origin, the concept of impossible piano existed long before black MIDI, manifesting itself within Conlon Nancarrow's work involving player pianos where he punched holes in piano cards, creating extremely complex musical compositions in the same impossible, unplayable spirit of black MIDI

Just did my good deed for the day and changed "piano cards" to "piano rolls." I'm guessing this article was written by a programmer. I have to admit I like the idea of old school programmers filling out punch cards and feeding them into a piano!

[hcs]

I don't think these were used for piano, but there was an organ book music system that used a chain of cards: https://en.wikipedia.org/wiki/Book_music

Edit: some discussion here https://music.stackexchange.com/questions/7536/did-any-playe...