By This piano keyboard has 12 keys. It has 7 white keys and 5 black keys. The 12 keys are also called an octave.
A modern piano keyboard typically has 88 keys (52 white keys and 36 black keys) and contains slightly more than 7 octaves.
An organ keyboard has about 4, 5 octaves. Electronic organs and modern American pipe-organs have 5 octaves.
A piano keyboard that has 88 keys has 3 keys in 0 octave, and 1 key in 8 octave. Each key on a piano keyboard has a different pitch sound. Learn the different musical note names on a piano keyboard.
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