Hi Matt,

I'm not sure you'd need to update. I use Sib 7.1 but I'm pretty sure I've used this in older versions. You might have to download the plug-in from the Sibelius website though.

I just did a test on a big band arrangement of Up A Lazy River (Si Zentner - Arr. Bob Florence). Just generated the chord notes from the chord symbols in the guitar part and then exported chord notes and bass track to a midi file. Imported in BIAB and had it interpret the chords.

Results were o.k. but oftentimes some higher chord extensions were missed. Eg Ab9 was interpreted as Ab7, G7(b9) was interpreted as G7. The missing notes were present in the Sib file so it's really a matter of BIAB missing them, not Sibelius.

HTH

Philip