It depends if it's a chord or a scale. On guitar, the D major chord is D A D F#. So three tones. Of course, just the Major 3rd chord itself is only two.
If it's a scale, you'd have to be more specific, as there are the 7 tone scale, pentatonic (the five tone scale), plus a myriad of modes.
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.
7.
b flat, d flat, f, and g
The notes for A major are A B C# D E F# G# A.
If I am using a C major pentatonic scale, I may only use C, D, E, G, and A. Five tones.
All major scales follow the pattern - tone, tone, semitone, tone, tone, tone, semitone. Therefore, C major has 5 tones and 2 semitones.
They are basic tonal reference points. Tonic is the key the music is in. Dominant is exactly five whole tones above tonic. This is true of any key. If you are playing in C major, the dominant is G major. If you want to transpose the piece into D major, the tonic is D and the dominant is exactly five whole tones higher - A.
Perfect Fifth. In a D Major Scale, the tones are D E F# G A B C# D so if you count up from D with D as number one the fifth tone is the A. In this case you could also refer to it as a Major Fifth.
It should be the same as any other instrument. The C major scale contains all the whole tones, no accidentals: C D E F G A B
Yes, there are six half tones in a standard musical scale. These half tones are the intervals between notes, such as C to C#, D to D#, and so on.
Major: major second, major second, minor second, major second, major second, major second, minor second.In other words, there are whole steps the whole way except between the third and fourth tones and seventh and eighth tones of the scale, where there are half steps.Minor: major second, major second, minor second, major second, major second, minor second, major second, major second.In other words, there are whole steps the whole way except between the second and third tones and fifth and sixth tones of the scale, where there are half steps.
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. _____________________________________________________ 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. ______________________________________________________ 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.