Credits
Nine to the Inch is a fictional workshop. The facts about rolls are real; here is where they come from.
Sources
- Piano roll, Wikipedia: the Buffalo Convention of 10 December 1908, 9 holes to the inch, Tempo 70, kinds of roll. https://en.wikipedia.org/wiki/Piano_roll
- Player piano, Wikipedia: the Pianola, 65-note rolls, stencils, word rolls, Metrostyle and Themodist. https://en.wikipedia.org/wiki/Player_piano
- QRS Music Technologies, Wikipedia: QRS in Buffalo from 1967, the final roll of 31 December 2006. https://en.wikipedia.org/wiki/QRS_Music_Technologies
- Conlon Nancarrow, Wikipedia: the 1947 punching machine, the canons in different tempi, Ligeti's words. https://en.wikipedia.org/wiki/Conlon_Nancarrow
- Welte-Mignon, Duo-Art, American Piano Company and Music roll, Wikipedia.
Music
Every roll on this site is drawn from note data of public-domain music, encoded from the scores for the bars named on each page: J. S. Bach, BWV 846; L. van Beethoven, WoO 59 and Op. 27 No. 2; E. Satie, Gymnopédie No. 1. Study No. 1 is computed by the site itself.
Image
- Two photographs cropped from The Semi-Automatic Piano-Player, Scientific American vol. 87 no. 12, 20 September 1902, p. 185 (the Simplex piano-player). Public domain, via Wikimedia Commons: https://commons.wikimedia.org/wiki/File:The_Semi-Automatic_Piano-Player._in_Scientific_American_Magazine_Vol.87_No.12_(1902-09-20)_p.185.jpg