In the above picture in measure 2, suspension 7-6 is shown.
It is from E to D and C. I counted the semitones, they turn out to be minor 7th and minor 6th apart and not Major 7th and 6th. So I wonder, when you say suspension 7-6, does it include minor and major 7th and 6th?
So, for example, Sus4 built on F can include both B and Bb or even B#? In other words, when you say Sus4 is built using Perfect 4th, does it also include Augmented 4th?