E-Seq

Yamaha developed the Disklavier reproducing piano to North America in 1987. At the time recordings and playback was via 3.5 2DD floppy disks.

Format Information
Disklavier recorded and played back in the E-Seq format which pre-dated MIDI. Disks often contained a form of DRM which made copying the disk difficult.

File Information
FIL files have a header which includes the ascii.

Software & Samples

 * http://www.kuhmann.com/Yamaha.htm
 * http://disklavierworld.blogspot.com/2010/01/e-seq-midi-software-tools-docs.html
 * https://www.midiplayertools.com/disks.htm
 * http://www.kinura.net/ppfbu/