Added: 3 years ago
From: Yaledmot
Views: 3,748
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  • That's such a nice little machine and I really like the arrangement of the music. It's so interesting to see how the motor drive mechanism works.

  • 1947Desoto

    1947Desoto Comment on your video:

    Wonderful machine! Old machines, both musical and automotive are the best. By the way, can you explain the difference between A-rolls and O-rolls? I do know that A-rolls have been around for a long time and that the O-rolls are more recent, but is there a physical difference?

    Desoto 1947--Sorry I deleted your original message from here. Answer below.

  • As near as I can figure out the basic difference between A rolls and O rolls is that the hole spacing for A rolls is 6 holes to the inch. The O roll spacing is 9 holes to the inch.

    Operators and Peerless had their own version of O rolls in the 1920s. While the tubing order was different, both used the 9 holes to the inch rule.

  • The "A" roll actually only uses 58 notes of the piano and has two other instrument. The mandolin rail, and either pipes or xylophone. The "O" roll uses all 88 notes on the piano and I think 5 other instruments.

  • This is true, but the note spacing is different on A and O rolls. A rolls use 6 holes to the inch while O and regular 88n piano rolls use 9 holes to the inch. Wurlitzer, not amazingly, has their own scale for APP rolls.

  • Doesn't the A-roll format date from about 1907 and the O-roll format from about 1915? When were the first O-roll pianos and orchestrions introduced? I know that not all of them had "solo instruments" as some experts seem to suggest. (example: the model D drum piano with just piano and drums).

  • Beautifull machine! Best regards:)

  • Very nice! I enjoyed this - especially nice for this time of year!

  • Isn't "modern" tecknowledge wonderful - how great that this old play is still in use....as to the roll good cut.

  • Great video. Did you know that David cut these rolls by hand in his kitchen? And, that this arrangement is based upon Kay McAbee's arrangement. David was a lifelong fan of Kay's!

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