Bill,
You can store hundreds of registrations on a single floppy disk. Additionally, you can store up to 30 style files on a floppy disk and access them instantly via the user button. Load time is usually one second or less from the disk.
You can also set up the keyboard's MFD using internal and onboard user styles, and access time is intantaneos. When I was playing using the 2000 I always had a dozen user styles in the onboard memory, plus 10 banks of registrations and an MFD with 500 songs on it, and I didn't run out of memory. This allowed me to also keep a Gig Disk in the floppy drive, which is similar to having another 30 or more songs ready to go at the touch of a button. Just a matter of planning things out ahead of time, then sitting down at the keyboard and practicing as if you were at the gig.
Good Luck,
Gary
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)