First of all, as I understand it (so I could be wrong), Badd11 is not the same as B11.

B11 would be B - D# - F# - A - C# - E,

because the 11 implies that the dominant 7th and the 9th are present (although you probably won't play all the notes, at least not on the same instrument).

Badd11 is really a Bsus4 (or just Bsus), except the 11 implies that the E (which is the 4th or 11th) would be played an octave up from the 4th. So it would be B - D# - F# - E (up an octave). Much easier, I suspect, on a guitar than a piano.

I don't believe BIAB, however, supports the difference. I don't recall Xadd11 as a supported chord, and so a RealTrack will play it like a sus chord. You may have to add the 11th manually as a MIDI note to get that octave jump.

I would just try to use Bsus and see if that gives you the sound you want, and if not, then just enter a B chord and add the extra note using a MIDI track.

John

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