In MMDigest 980912 Bill and Dee Kavouras asked about a key-top MIDI
player.  QRS makes such a unit.  It utilizes the same technology as the
installed Pianomation system except the solenoids are "upside down."
You can see a brief description at:

    http://www.pianomation.com/cutsheets/q3p2prd2.htm

Or just go to the QRS homepage:  http://www.qrsmusic.com/   and
navigate to the Pianomation MIDI section, "Playola Portable Player".

Will Dahlgren