I am doing a song in the key of E and it is 3/4 time. I need a 3 chord walk up from E to A chord going into the chorus. I'm sure there are some slash chords for the bass part. Bar 15 is E and Bar 17 (Start Chorus) is A. Bar 18 is B.

I looked into the Biab Chord Substitution but didn't find what I was looking for.

Thanks,

Trax