Not sure if you do this already, but if you left-click your mouse on the bar that you wish to add chords in and then choose "Chord builder" from the menu, there is a drop-down menu directly above the "Play" button that lists all the chords that BIAB supports.

E7b5b9 is there (note, it doesn't matter what order the 7, b9, b5 are written in because the notation only indicates which notes to alter. For example, E7b5b9 is an E9 chord (E-G#-B-D-F#) with the 5th above E and the 9th above E flattened by a semitone to make E-G#-Bb-D-F.

I cannot find E+7#9 and (until I get home to verify this) I imagine that A+7 is the same as A7+


MY SONGS...
Audiophile BIAB 2025