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.
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.
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
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.
There are no flats in D major, but there are 2 sharps. C sharp and F sharp.