I use BinaB to create backing tracks for when I play my Bb Tenor sax

I have loads of books written for Bb instruments so load in the cords shown in my Bb book and then to get BinaB to play the right backing I transpose the BinaB key sig 2 semitones

D in my Bb book to C in BinaB
Eb to Db
;
;
;
;
Db to B

I also sort out the relative minors if its written in a minor key

This works fine and it plays great backing tracks ( I have UltraPlus Pak )

NOW!! my wife is learning the Alto in Eb

What I want to be able to do is to get her to play the melody lines from my Bb books but transpose BinaB so it plays the right backing for her Alto

I am obviously going senile as I cant seem to work this out

Has anyone done this

Tx

Phil