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Before We Start, Some Definitions (not legal, but close enough for piano work)
Tuning - Pulling the string to the correct tension to make the correct tone for the key pushed - varies from ~180 to 400lbs. This creates overall tension on the frame of the piano from 16 to 40 tons (32,000lbs to 80,000lbs)
A440 is the international pitch standard which means the A above middle C beats 440 times a second.
Pitch Adjusting - Because of the number of strings (235 Average) ,their tensions and the springiness of the soundboard,
a piano must be very near the correct tension or at least have the tension spread evenly across the piano
to be tuned with stability.
Grand Piano - A grand piano will have three corners (one may be rounded) and the strings are parallel to the floor.
Vertical Piano- The strings are vertical or perpendicular to the floor. Vertical pianos are named by height. Spinet ~36", Console ~39", Studio ~45" and Upright ~52"
Square Grand- A large rectangular case on four legs. The strings are parallel to the floor which is a dead giveaway. Old and expensive to tune or work on.
Grand or Upright
Tuning
Pitch Raise/Lower
Voicing
Grand Only
Dust Soundboard/Plate
Clean Action Cavity
Regulate Action
Replace Action Parts
Clean Strings
Regulate Pedals
Treat Pinblock
Upright Only
Regulate Action
Replace Action Parts