The leading note of B major is A#.
The dominant is the 5th, which in the key of A-flat major is E-flat. Then an E-flat major triad contains the notes E-flat, G, and B-flat.
Eb
The supertonic triad in the key of A flat major is B flat, D flat, and F natural
The Keys of B-flat, E-Flat, A-Flat, D-Flat, G-Flat, C-Flat, and F-Flat major all contain the note E-flat. F-flat major is a key which only exists in theory and not in practice, since there is a double flat in that scale (subdominant). The major scale with the most flats is C-flat major - with all seven flats.
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.
The dominant is the 5th, which in the key of A-flat major is E-flat. Then an E-flat major triad contains the notes E-flat, G, and B-flat.
The tonic of E flat major is E flat. Its dominant is B flat and its subdominant is A flat.
The dominant of A is E.
Eb
The subdominant in a scale is the 4th, which in the key of B-flat major is E-flat.
The dominant key is the fifth note of the scale. For A major scale, this would be E.
B flat note, C note, D note, E flat note, F note, G note, A note, B flat note.
The supertonic triad in the key of A flat major is B flat, D flat, and F natural
The Keys of B-flat, E-Flat, A-Flat, D-Flat, G-Flat, C-Flat, and F-Flat major all contain the note E-flat. F-flat major is a key which only exists in theory and not in practice, since there is a double flat in that scale (subdominant). The major scale with the most flats is C-flat major - with all seven flats.
The dominant note of an F major scale is C. In music theory, the dominant is the fifth degree of a scale, and in the case of F major, the notes are F, G, A, B♭, C, D, and E. The dominant note often plays a crucial role in establishing tension that resolves back to the tonic, F.
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.
The subdominant note of E-flat minor is A-flat.