I just became an "expert" with the ACW the other day in this thread in the RB forum.

http://www.pgmusic.com/forums/ubbthreads.php?ubb=showflat&Number=369381&gonew=1#UNREAD

Check out the vid that Rharv posted.

Once I figured it out is really is easier than it looks.

As far as your specific question about chord detection, the more information it has to work with the better. I play jazz piano and many times I'm not using the root in the left hand. Jazz piano has tons of inversions and sub chords. Without a full band to flesh that out the ACW will be a mess. An example is a 2-5-1 to Bb using minor 9's and 13's. Say a Cm9 with the Eb on the bottom and the D on the top, change the Bb note to an A it becomes an F13, change two notes, the G to an F and the Eb to a D and it's a Bbmaj7. Your hand barely moves, you pinky is on the high D for all three chords. Without a strict C, F and Bb bass note, if you know nothing else about the tune, what chords are those?

However, the ACW will still give you the total number of bars and create an overall song structure. Just that alone is worth it because it saves you from creating a new song from nothing in Biab. At least with the base structure to work with you can manually fill in the correct chords yourself from other sources you may find on the net.

Bob

Biab/RB latest build, Win 11 Pro, Ryzen 5 5600 G, 512 Gig SSD, 16 Gigs Ram, Steinberg UR22 MkII, Roland Sonic Cell, Kurzweil PC3, Hammond SK1, Korg PA3XPro, Garritan JABB, Hypercanvas, Sampletank 3, more.