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MMD > Gallery > Tech > Scales > Aroll01.htm


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G-roll Scale & Tracker Bar
Nickelodeon A-roll Tracker Bar
photo courtesy Hal Davis

Data from page 156, "Rebuilding the Player Piano", by Larry Givens,
(C) 1963 by the Vestal Press.

   1. Soft pedal
   2. Sustain pedal
   3. Rewind to play (end of roll)
   4. Lowest playing note
  61. Highest playing note
  62. Additional instrument on
  63. Rewind
  64. Mandolin on
  65. Shutoff (end of song)

When correctly connected, the lowest playing note is
36C (MIDI notation), two octaves below Middle C (60C).
The span is 58 playing notes, the highest being 93A.
 

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