Scott,
I use the music finder on the 2000 a lot, but that's because I custom program the songs to each gig, which I found to be the only way to go. Essentially, the MFD's main directory is stored on the hard drive in my computer. Then, when I'm going to play at a particular location, I merely import the songs that I intend to use for that specific job--not the entire MFD.
The other thing I have done, which has really worked out well, it to put together Gig Disks of styles and rename the styles with song titles. You can usually put about 30 stles on a single floppy disk, which is usually more than enough for two 40-minute sets. Again, for me, not having a Tyros with a hard drive, I merely drag and drop the files from my computer's hard drive to a floppy disk, then access the disk with the keyboard. Loading time is a matter of two or three seconds at best.
The beauty of each technique is they virtually eliminate dead time, however, this means you'll have to pre-program for certain types of jobs. I know from past experience what certain audiences will request, what they like to dance to, and if I have to deviate from the program, another song can be ready to load while I still playing and singing the current number.
The bottom line is with the Tyros, you should be able to do this even faster than I can with the 2000. What you don't want to do is sit at the keyboard and scroll through several hundred songs while the dance floor is filled with people. Scale down and categorize the MFD and I guarantee you'll eliminate dead time, and have a ball playing your new Tyros.
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.)