Disklavier

On Yamaha Pianosoft PlusAudio CD's the analog midi information is on the 
right channel.  You can easily hear this by inserting the Yamaha CD in 
your computer's CD-ROM and listening to the vocal/instrumental parts on 
the left  channel and the analog midi as a loud buzzing noise on the 
right channel.  The left channel's volume of course varies with the 
content while the right channel analog midi is at constant volume.

I do not believe that the Yamaha Pianosoft PlusAudio CD's have any midi 
information other than the piano parts on the CD.  All other music 
including vocals and instrumental accompaniment) is from the audio on 
the CD -- not from midi instructions to the tone generator as on 
ensemble disks.  I could be wrong about this but I believe that the only 
midi on these CD's is for the piano parts.  

If one has a means of converting digital midi to analog midi (and I do 
not know how to do this) then there should be no problems making one's 
own CD's to play on the Mark III or the Mark II with the DCD1.  

Tom Wheeler