G Major
The leading note of B major is A#.
The submediant is lowered (E to Eb)The mediant is lowered (A to Ab)The leading note is lowered (B to Bb)
The supertonic triad in the key of A flat major is B flat, D flat, and F natural
b flat
The leading note of g minor is F#. by the way leading note means 7th note.
B major's submediant note is g#
The minor scale that has B flat as its submediant is the D minor scale. In the D minor scale, the notes are D, E, F, G, A, B flat, and C, making B flat the sixth note, or submediant, of the scale.
The submediant of E major is C♯ minor. In the context of a major scale, the submediant is the sixth degree, and in the E major scale (E, F♯, G♯, A, B, C♯, D♯), the sixth note is C♯. Thus, C♯ minor serves as the submediant chord in the key of E major.
B flat note, C note, D note, E flat note, F note, G note, A note, B flat note.
B
The dominant note is the 5th note in the scale. In the B Major scale, F is the dominant note.
Your question doesn't make much sense. But for any scale, "do" would be the first note of the scale, which is whatever the scale is called. But for a flat major, from what it sounds like you're asking, the note would be a flat. Ex: In B flat major, "Do" is b flat.
The scale that contains only a B flat is the B flat major scale, which consists of the notes B♭, C, D, E♭, F, G, and A. In terms of modes, the B flat Mixolydian mode also features B flat as its root note, along with other notes from the B flat major scale. However, if you're referring to a scale with only one note being B flat, it would simply be a B flat pitch or a B flat note.
In F major and B flat major, the fourth note is B natural. However, when the scale is constructed, it is necessary to lower this note to B flat to maintain the proper intervals that define the major scale. This alteration helps create a whole-step and half-step pattern that aligns with the major scale formula, ensuring the harmonic and melodic coherence of the key. Thus, the flat is essential for preserving the characteristic sound of these major scales.
The leading note of B major is A#.
Mi is the 3rd of the scale. In B-flat major, it's D.
In B flat major the F is a natural F. In G major the F is F sharp unless you are told otherwise.