Thank you all for the helpful suggestions.
I managed to get it working as hoped.

I am much more comfortable using Cubase, to be honest.
I simply loaded in the tracks as they were output from Realband, and then used the track volume control in Cubase to bring in each instrument over time.

Super simple. Super fast. Should've thought of that first.

Thanks again.
I appreciate your help.


BIAB 2019 Ultrapak (latest update).
Cubase 12 Pro. (Always latest update).
Steinberg UR44 audio interface.
Nektar Impact LX88 keyboard.
Windows 11 64 Pro.
Custom PC.
CPU AMD Ryzen 7. 3.5 GHz.
GPU Radeon RX 6700 12GB
32 GB Ram.