This should be an easy one, but how are the new Performances stored/identified?
*1 The new Performances added by firmware version 2.00 update
Additional New Performances
The MONTAGE offers 99 new Performances.
For the added Performances, refer to the Data List.
There's 99 new performances. I believe each one gets a run-through. I listened to most of these. Lots of bread-and-butter nice new content. Piano/Organ/e-piano/etc. Along with lots of dance stuff - but enough at least what I consider bread-and-butter to be very interesting. Source: Moessieurs
Thank you Joel for a more practical approach - listing by number and not by name.