1.   Although it plays piano rolls, a pianola is different from a player piano, having neither keys nor strings.

2.   Artis Wodehouse demonstrated Gershwin piano rolls.

3.   A year later, Congress amended the Copyright Act to include new technologies like piano rolls and sound recordings.

4.   After learning to punch holes in the unwieldy piano rolls with painstaking accuracy, he could let his imagination soar.

5.   Eventually, someone sent him a CD of composers playing their own works on piano rolls and he was off.

6.   Gershwin and his contemporary Zez Confrey materialized through old piano rolls transferred to the Yamaha Disklavier, a sophisticated update of the player-piano.

7.   He also began composing directly onto piano rolls, and for about four decades he composed exclusively this way.

8.   Nearly all attempts to recapture the musical ideas punched out in old piano rolls have been disastrous.

9.   Today, though, engineers are returning to the old piano rolls and devising new and improved ways to bring them back to life.

10.   You see, piano rolls are not like sound recordings.