Disklavier

Robert,

Thanks for the clarification.  I think the term "analog" midi is a poor 
term.  It is used by Yamaha in the manual which accompanies the DCD1 
and, if I recall correctly, in their web site descriptions of the DCD1. 
 While I do not argue with your assertion that the data on a CD is 
digital, whether it is audio data or midi data, it is certainly true 
that the midi data on a Yamaha PianosoftPlus Audio CD is different in 
file type than the SMF midi file stored on floppies or on your 
computer's HD.  As you pointed out a function of the CD devices on the 
Mark III disklaviers and the DCD1 (for the Mark II disklaviers) is to 
decode the midi data on the CD and send it to the control unit of the 
piano. Thus to be able to prepare CD's like the Yamaha PianosoftPlus 
Audio CD's you will need to encode the midi data in the format that 
Yamaha is using to place the midi data on the CD. That is what I do not 
know how to do and I don't even know whether such encoders of SMF midi 
files are available.  In summary, unless I am missing something, to 
prepare CD's which will play on the Mark II's or the DCD1 you will need 
to transfer the midi data to the CD in the format that the CD player is 
expecting to see the midi data in order for it to be properly sent to 
the piano.  It is this format (whatever it is) that the term "analog 
midi" is being used to describe.  I am assuming that the vocals and 
instrumentals on the CD are in the standard CD audio format since they 
will play back correctly on a computer CD ROM.  

Tom