the tonic of
the tonic of c is c because the tonic refers to the first note of the scale. Which is c. get it?
G
The tonic is the 1st note in the scale. For example, in the G major scale, G is the tonic.
c b a g
G flat
A tonic is the root note of a musical piece. This note is what names the key that the song is in. So, if a minuet is written in the key of G, it's tonic note is G and its tonic chord is G major.
It is a major chord. Actually, tonic is simply defined as the first note in the scale or key. All chords have tonic note. The tonic of a C chord is the C. The tonic of a C minor chord is a C. The tonic of a C minor major 7 is a C.
The tonic note of any diatonic scale is the first note (starting note) of the scale. In the case of G-flat major the tonic note is G-flat!
Chords don't have "tonic notes". Scales do. The tonic note of the G major scale is G (in fact, the tonic note of the X major/minor scale will always be X). Chords do have roots, but that's equally boring: the root of the G major chord is G.
Major triads are made up of three notes; a major third interval followed by a minor third interval. An example of the C major triad is C E G. A minor triad has a minor third interval followed by a major third interval, such as C E Flat G.
The tonic is the first note of the scale. Therefore, the tonic is G.
Each scale has a Leading Tone (which is the 7th note of the scale) and a Tonic Note (which is the first/eighth note of the scale). For the key of C major, the leading tone would be B, and the tonic note would be C.
F, G, and A are musical notes. In the key of F major, they represent the tonic, the second, and the third of the scale.