Yes. That's correct, multiple child SGUs are combined into a master SGU and the bars and transitions are modifiable.

Concerns:

1. Some changes will not work and others will in regard to the Master SGU. In your examples, changing chords works. Inserting or deleing bars work. If you change a RealTrack in the Master SGU, it remains changed for all of the Child SGUs bars in the Master SGU but doesn't affect the Child SGU. The actual Child SGU is not affected by changing a RealTrack in the Master SGU. Changes made in the master SGU, doesn't affect the Child SGUs.

2. They are linked but not directly connected. Any changes made to a Child SGU have to be saved before the change is recognized by the Master SGU. Changes made to the Master SGU do not affect the Child SGU. The Master SGU can be saved as a normal SGU/MGU file or exported from the Medley Maker Dialog Window.

3. You can regenerate RealTracks and exchange RealTracks with the exception noted above in Concern 1 that the RealTrack affects all the bars of the Master SGU regardless of the Child SGU being read.

Correct. The Master SGU key signature remains the same throughout. Note that the Child SGU key signature can be changed from the Medley Maker Dialog Window and Styles and tempo can also be changed from this window without affecting the Child SGU. MultiStyles are also recognized in the Master SGU in my testing.

BIAB 2025:RB 2025, Latest builds: Dell Optiplex 7040 Desktop; Windows-10-64 bit, Intel Core i7-6700 3.4GHz CPU and 16 GB Ram Memory.