C-flat minor is a key that only exists in theory and is never actually used. The notes are Cb Db Ebb Fb Gb Abb Bbb Cb. Those are three double-flats in the scale, which means the key signature would contain 10 flats. A preferable option would be the enharmonic equivalent key of B minor, which is B C# D E F# G A B.
The notes in a G harmonic minor scale are: G A B flat C D E Flat F# G
The notes of the D harmonic minor scale are D, E, F, G, A, B flat, C#, D.
A flat, B flat, C flat, D flat, E flat, F flat, G natural
Because it has a minor third (eg in C minor scale, C-E flat is a minor third interval), and a minor 6th (again in c minor, C -A flat is a minor 6th). This creates the correct pattern for TSTTST1/2S
There is not three notes in any scale or key, if you are asking about the accidentals, there is one flat (Bb) in the key signature plus an additional C sharp for the harmonic minor scale.
The C major scale and its relative minor, the A minor scale. C Major.
C, E-flat, G and B-flat - which are the notes in a C minor seventh.
The notes in a G harmonic minor scale are: G A B flat C D E Flat F# G
The scale of 'C' - it uses neither sharp or flat notes.
The notes of the D harmonic minor scale are D, E, F, G, A, B flat, C#, D.
The natural minor scale with the most flat notes is G♭ natural minor, which consists of 6 flats: B♭, E♭, A♭, D♭, G♭, and C♭.
A minor scale is the same as its major scale with the third and the seventh notes "flatted" or lowered half a step. For example, the key of C has the notes C D E F G A B C in C minor the E is changed to E-flat and the B is B-flat
A flat, B flat, C flat, D flat, E flat, F flat, G natural
D E F G A B flat C D
C minor is C D E-flat F G A-flat B-flat C.
G flat, A flat, B flat flat, C flat, D flat, E flat, F natural and G flat.
The notes in the A minor scale are A, B, C, D, E, F, and G.