Disklavier

A really good Jukebox program on the Mac is iTunes. In OS9, you can 
redirect the output of iTunes (actually this is done in Quicktime) to 
Midi devices.  For some reason this feature is not yet implemented in 
OS X.  Another alternative that might be good is the Tracktor DJ Studio 
program by Native Instruments (available for PC and Mac).  I haven't 
used this one, but it seems like it would do what you want and people 
(well DJs anyway, if you can call them people) seem to love this 
program.

> Don asked:
>
>> I would like to take all of my midi file diskettes, including the ones
>> purchased from Yamaha and load them into a laptop which would sit on 
>> the
>> MX80.
>
> Because your Disklavier will play MIDI received from an external 
> source, you
> can do this. There are various jukebox programs for MIDI, but I am not 
> aware
> of a really good one. Someone else on this list may have a better 
> opinion
> about that.
>
> Carol mentioned the E-SEQ issue. That issue really only affects your 
> ability
> to play E-SEQ files from the computer. Most people who want to play 
> their
> Yamaha files (E-SEQ)  from a computer use a program for converting 
> E-SEQ to
> SMF.
>
> If you hope to play files that require a tone generator for the 
> non-piano
> tracks found in many SMFs, you will need to factor that into your 
> setup. The
> easiest, most integrated way is to add a DSR1 to your Disklavier. The 
> DSR1
> gives you an additional control  unit that functions much like the 
> control
> unit on a Mark IIXG Disklavier. It also contains all of the GM sounds 
> and a
> set of 480 XG sounds. It will also play SMFs directly from floppy disk.
>
> Regards,
> PianoBench