Q: How many keys are on a piano keyboard ?
- 88 keys - A0 to C8 , 52 white Notes and 36 black Notes
- 7 octaves 1/4
- 7 white notes and five black notes to an octave
Many older pianos only have 85 keys (seven octaves from A0 to A7), while some manufacturers extend the range further in one or both directions
