Disklavier

Allen,

I was doing a little research, but I can't find any details on PPG10R 
and I'm not familiar with it.  I found some information on the MU-90, 
but not on the "wagon".  Conceptually, you should be able to hook 
things up like you want.  You may want read and try some of the 
following things.

It sounds like the way you have it now you can play ESEQ diskettes on 
the wagon with accompaniment on the MU-90, is this correct?  If this 
is true than the PPG10R must have a MIDI out port that you have 
connected to the MU-90 MIDI in.

Now to verify the second part.  It sounds like you said you already 
have the laptop connected to the MU-90, is this correct?  If not, it 
shouldn't be too difficult to do, although you won't be able to do it 
through USB (no WIN 95 support).  If your laptop has a regular serial 
port (it probably does) you should be able to get a cable to connect 
the laptop to the "Computer/MIDI interface" on the MU-90.  This 
connection should be a standard RS232C or RS-422 serial interface on 
the MU-90.  This cable should be pretty easy to find once you figure 
out what connections you need on either end.  One word of advice on 
this cable.  If you try it and it doesn't work, you may need a small 
cable called a "null modem" that switches the send/receive wires.  If 
you have the manuals you should be able to find the "pin out" for the 
serial port on the MU-90 and you can match it up with a standard 
serial "pin out" from the laptop.

Finally, does the PPG10R have a MIDI in?   I know it only plays ESEQ 
from diskette, but if it has a MIDI out, it probably has a MIDI 
input.  If it does you can run a cable from the MU-90 MIDI pass thru 
port to the PPG10R MIDI input.

If you followed this far there's only a couple things left to do.

1. Configure your software to send the MIDI stream through the serial 
port.  This shouldn't be too difficult.  It probably involves telling 
the software you have an external MIDI device connected to the serial 
port.  If you need to, you can contact tech support for the software 
to configure this.

2. Make sure the "Grand Piano" MIDI parts are not played by your MU-
90 but instead are "passed thru" to the PPG10R.  I'm not sure how to 
do this, but if you get this far I bet someone else here will be able 
to help.

Good Luck

Brian