I had heard that a long time ago (1920-1930ish) that the piano roll
makers and the sheet music makers were having copyright disputes.
Later on the Supreme Court ruled that piano rolls were defined as
machinery and not music and as such didn't fall under that same
copyright restrictions as sheet music (or by definition, other
recorded music of today).

Is that ruling still in effect or has it been overturned?  In other
words, if I cut a roll with recent music on it (music which is still
under copyright) would that be a copyright violation or does it still
fall under that Supreme Court ruling that effectively excludes piano
rolls?

Regards,

Ray Finch