piano roll

10 LETTERS · STARTS WITH P

piano roll is a valid 10-letter word worth 11 points in Scrabble and 15 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

P3I1A1N1O1R1O1L1L1

3 + 1 + 1 + 1 + 1 + 0 + 1 + 1 + 1 + 1 =11 PTS

DOUBLE WORD → 22TRIPLE WORD → 33

MEANING

What does piano roll mean?