The following was written by Craig Chamberlain, the author, upon MIDIplayer's
initial release in January, 1989:

I have just released the MIDIPLAYER program.  First demonstrated at the
Columbus SIDFEST, this program plays Enhanced Sidplayer songs on any MIDI-
capable synthesizer.  Besides sending MIDI information to make a synthesizer
play the notes in a song, the player also supports other MIDI features such
as program changes, controller changes, different channel modes, and
different keyboard velocities.  The player even supports real-time control to
help synchronize a drum machine with the synthesizer.  The first release of
MIDIPLAYER works with all MIDI synthesizers and has the ability to load patch
files for non-handshaking synthesizers.  Another version of MIDIPLAYER is
being released to support patch file loading on the Casio CZ series.
MIDIPLAYER works with MIDI interfaces manufactured by Passport, Sequential,
and Datel, and with other compatible interfaces including Sonus and Dr. T.
The document "SIDNEWS #14 - explains how to use the MIDIPLAYER to play songs
on a MIDI system.  Please note that the Enhanced Sidplayer music system was
not designed to be a full MIDI system, and the MIDIPLAYER is not intended to
provide a full MIDI composing environment.  The Sidplayer Editor does not
accept note entry by synthesizer keyboard, so using the system for MIDI
composing would be rather awkward, although people who have only a
synthesizer module with no keyboard may find the system very useful.

I hope you enjoy MIDIPLAYER!
  Craig Chamberlain
  Author, "COMPUTE!'s Music System
  for the Commodore 128 and 64: The
  Enhanced Sidplayer"

COPYRIGHT NOTICE
The Enhanced Sidplayer Promotional Player, including the MIDI edition, is
copyrighted by COMPUTE! Publications, Inc. and is not in the Public Domain.
Permission is granted to freely distribute the program, however, provided
that it is not modified and not sold.