Dodeka Keyboard - Innovative and Isomorphic Musical Instrument | Dodeka
Microtones: The Notes Between The Notes | Microtonal Music
Close Up of Microtonal Piano | All those pesky quarter steps… | Flickr
Have Yourself a Merry Little Christmas (11-TET microtonal piano cover) - YouTube
Microtonal piano sounds: a 1930s audio recording and a unique score of Ivan Wyschnegradsky's Ainsi parlait Zarathoustra in Rare Music – Archives and Special Collections
New design for the quarter-tone piano unveiled in Finland