Disklavier

I am new to the group, so forgive me if this has been hashed about. I have a customer 
wanting to "jukebox" MIDI files from an OSX Mac laptop to his DC7IIXG. Is there an elegant 
program available to organize MIDI files into a jukebox format? Will Quicktime play MIDI files 
externally?

I appreciate any input and have been looking at the threads regarding Eseq and MIDI files. If 
he were talked into getting a laptop PC instead, what recommendations would anyone have 
for the software utilities and version of Windows? 

Thanks in advance,


Greg