The scale tone chord extensions in the key of A are:
So far you have played F#7, Amaj7, B7, and C#m7. The three remaining chords are Emaj7, G#m7 and D#N7. The most important of these three chords - Emaj7 and G#m7 - are written here.
Play all the scale tone extension chords in the key of E as written on the following staff, ascending and descending.