If you're thinking that USB connection on the 2100 is for storage--it's not. It just parallels the midi cable. Stick with the 1500, or better yet, save your pennies and buy a 3000.

Cheers,

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.)