The chord symbol C represents a C major triad, which consists of the notes C, E, and G.

The difference between a major and a minor chord is in the interval between the root and the third. In a major chord, the interval is a major third (4 semitones), while in a minor chord, the interval is a minor third (3 semitones).

The chord symbol G7 represents a G dominant seventh chord, which consists of the notes G, B, D, and F.

The function of a dominant seventh chord is to resolve to the tonic chord. This is because the dominant seventh chord contains a leading tone, which creates a strong sense of tension that is resolved when the chord moves to the tonic.

The chord symbol Cm represents a C minor triad, which consists of the notes C, Eb, and G.

The difference between a diminished and an augmented chord is in the interval between the third and the fifth. In a diminished chord, the interval is a diminished fifth (6 semitones), while in an augmented chord, the interval is an augmented fifth (8 semitones).

The chord symbol F#m7b5 represents an F# minor seventh chord with a flatted fifth, which consists of the notes F#, A#, C#, and Eb.

The function of a subdominant chord is to resolve to the dominant chord. This is because the subdominant chord contains a perfect fourth, which creates a sense of tension that is resolved when the chord moves to the dominant.

The chord symbol Gsus4 represents a G suspended fourth chord, which consists of the notes G, C, and D.

The difference between a sus2 and a sus4 chord is in the interval between the root and the second. In a sus2 chord, the interval is a major second (2 semitones), while in a sus4 chord, the interval is a perfect fourth (5 semitones).

The chord symbol Cmaj7 represents a C major seventh chord, which consists of the notes C, E, G, and B.

The function of a tonic chord is to resolve to the dominant chord. This is because the tonic chord contains a perfect fifth, which creates a sense of stability that is resolved when the chord moves to the dominant.

The chord symbol Dm7 represents a D minor seventh chord, which consists of the notes D, F, A, and C.

The difference between a major and a minor seventh chord is in the interval between the root and the seventh. In a major seventh chord, the interval is a major seventh (11 semitones), while in a minor seventh chord, the interval is a minor seventh (10 semitones).

The chord symbol Edim represents an E diminished triad, which consists of the notes E, G, and Bb.