mhoman7078, I found a useful way to practice with both versions of the ACW is to use BIAB generated songs from the Users Showcase.

The ACW seems to decode these songs more accurately than some commercial songs.
User Showcase songs typically do not have as many tracks and different sounds to deal with as a commercial song would have.
User Showcase songs normally provide the Key signature, tempo and whether the song is in 3/4, 6/8/12/8 or 4/4 time.
User Showcase songs normally do not have many modulations or odd time signatures scattered throughout the song.
User Showcase songs many times provide the BIAB style used so you can experiment with seeing how accurately you can recreate a song.

Of course you would do this for practice and experimentation and not to reproduce or publish the work but this method will provide you with a lot of information you would not normally have access to.

BIAB Ultra Pak+ 2024:RB 2024, Latest builds: Dell Optiplex 7040 Desktop; Windows-10-64 bit, Intel Core i7-6700 3.4GHz CPU and 16 GB Ram Memory.