rgtaa...The PSR9000 whether it has an hard drive or not does not contain a separate 16 channel sequence to which you can load a song \ Midi file into as do other top end arrangers from Roland, Technics, Ketron, Korg... Just forget your Hard Drive for the minute for this test to prove my point.
Now load a Midi file or anything your have recorded on the 9000 from floppy to sequencer. Now take out your floppy and no longer can you make any changes to the sequencer because being disk based it is wanting to automatically save to disk the changes you have just made. Without a disk Floppy or Hard Disk you have no sequencer.

I have complained to Yamaha about this and they agree with my statement. Interestingly the all new PSR2000 now contains a separate dedicated sequence which the PSR9000 does not have.

This is my last message a this subject.

Graham UK