How many keys are there in an octave on a piano?

Answer 1

In an Octave or Perfect Eighth, there are 12 ( 13 if you count the eighth).

For scales that begin on white keys, there are always 8 white keys and 5 black keys in a single full octave. For scales that begin on black keys, there are always 6 black keys and 7 white keys in a single full octave.

Answer 2

There are 13 in the compass from C to C.

The above is true according to common understanding of western musics. But there are 14 if you consider the analysis of the octave as given in "divine octave music", considered by some to be "true music".

It remains that the question is "How many keys are there in an octave on a piano?" The answer to that question is 13, whatever other kinds of instruments or systems there are. 14 may be the answer to another question, but it is not the answer to this one.

Answer 3

Well that depends what key you're in. If you're in C you would go the next C up.

Answer 4

There are thirteen notes in an octave.

Answer 5

there would be eight octaves

Answer 6

Five black, seven white.