Jim, as I mentioned I do not want to compare apples to oranges. I only brought up ChordPulse to put accent on what is elegance vs clutter. Complexity should not be excuse for clutter.

Guys, I know that you are trying to help, thank you! I am sure you know about BIAB 10 times more than I. The last time I have tried it over a decade ago and gave up on it. This year I bought it and tried to approach it with open mind. This thread caught my attention, because rendering does steal a lot of time and when I have the time and the mood to make backing tracks, I do not want to waste a good chunk of it on rendering processes.

The point that I am trying to make is, I believe frozen or not BIAB goes to the source location of files on hard drive instead of loading active real tracks (the ones used in composition) directly to memory each time you click on that "render" button. If I am not mistaken, probably it is the culprit of the problem.

Most likely that code was written at the time when computers had 512megs of Ram on average, not the case now. Again, I am guessing here, but I think I am right on the getting files from hard drive each time when rendering instead of keeping them in memory.

What does PG say about this? Do they even reply to such concerns?