AKA: B9 sus4, B ninth suspended fourth, B9sus, B nine suspended, B Dominant ninth suspended 4
A ninth suspended fourth chord is the best option available on the Stradella system to play a suspended chord.
It’s very similar to a ninth eleventh chord but it does not have either the 3rd nor the 5th and the 11th is seen as a 4th.
B, E, A, C#
R, 4°, m7°, 9°
B + AM
(C♭ + B♭♭M)
2 + 4
3 + 5