What keys does she play on the piano?

I can't read music but I do know which keys are which on the piano...but I can't tell what keys Molly's hitting when she's playing Belly up to the Bar. At first she just hits 4, 1 on the right side, and 3 on the left, then when the band's playing with her it looks like she's striking about 6 or so. Does anybody know which keys she plays to provide the music for Belly up to the Bar Boys?