Note B in the key of D major is the
Note B in the key of D major is the
Explanation
The D major scale has these notes: D, E, F#, G, A, B, C#. The submediant is the sixth note in any scale.
When we count from D (first note), B is the sixth note. This makes B the submediant of D major.
Remember: sub means six in music terms. The submediant is always the sixth scale degree.