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That depends on whether it's a conventional scale or a different type of scale like a pentatonic scale [which ironically has 3 tones]. Most scales, from Do to Do, have five tones. For those who don't learn notes as do, re and mi, I mean from C to C etc.
Oh, and also, I'm not sure why you specified the piano, as scales are just notes, therefore playable on any instrument in the same way. Though admittedly, it's easier to work out if you know the layout of a keyboard.
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I assume you are asking about a major or minor scale, but there are different types, and how many tones also depends on if you count the high note above with the same letter as the lowest note.
In a traditional MAJOR SCALE (a.k.a. Ionian), there are seven different letter names (and usually an eighth note is added with the same letter name, an octave higher than the first). If you start on C, the major scale is C, D, E, F, G, A, B (and C for the eighth note). You can start on any note, but you will get different letters).
A pentatonic scale has FIVE tones (if you start on C, then the notes are C, D, E, G, A.... and again C which would make 6 tones if you count the high note). There are many other scales, but this should answer your question.
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If we speak about TONES (not notes), there are 12 semitones, that is 6 tones between for example C and C of a higher octave in a standard major scale.
What else can I help you with?
How many white keys are in an octave on a piano?
8.
How many whole tones are there between a and c in a piano?
3 halvtones which equals one and a half whole tones.
How many notes are the in the pentatonic scales?
There are 7 notes in a heptatonic scale. Heptatonic scales are the major and all minor scales including the 7 diatonic scales which are those consisting of 5 whole steps and 2 half steps separated by either 2 or 3 whole steps.
How many notes are in an A two octave scale?
There is a total of 29 notes: 14 are ascending, 1 is at the top of the scale, and the other 14 are descending.
How many notes are there in a music scale have?
There are seven musical notes in the musical scale. However, there are different tones of each note. The notes range from A to G and can be sharp or flat.
How many tones in a major scale?
Let's do C major. C D E F G A B. So there are 7. If you count the octave (C), then 8. This is the same with any major scale.
How many full tones does an octave consist of?
8
How many notes is a tritonic scale made up of?
There is no such thing as a ''tritonic scale'', a tritone is an interval of six semitones (half an octave), hence the name ''tritone'' which means ''three tones''.
How many tones equal to 1 unit?
There are 100 cents in a semitone, so there are 1200 cents in an octave. Since an octave is equal to doubling the frequency, there are 2 tones (whole steps) in an octave.
How many notes are in in an octave?
In a diatonic scale, there are eight notes in an octave.
How many white keys are in an octave on a piano?
8.
How many black keys are on a 6-octave piano?
30
How many keys are there in an octave on a 50 key piano?
An octave is always 8 white keys and 5 black keys.
How many tones in the Diatonic scale?
Seven
How many tones are in a major scale?
7.
How many tones is in a chromatic scale?
12
How many tones are there in a tone scale?
7.
