The number of keys on an organ varies, but a standard organ manual typically has 61 keys.
Variations in Organ Keyboard Sizes
While 61 keys are common for a standard manual (keyboard) on an organ, it's not the only size you'll find. Here's a breakdown of the variations:
- Standard: A typical 19-organ manual in the US has 61 keys.
- Common Alternatives: Manuals with 56 or 58 keys are also frequently encountered, and these sizes are now more common than in 1950.
Key Range
- On most organs built in the 20th century, the lowest key is C, which corresponds to the C two octaves below middle C.
Summary
The most common number of keys you'll find on an organ manual is 61, although 56 and 58 key manuals are also prevalent.
