Other than the fact that it feels awkward working or editing in the structure that the song was laid out in originally, I would like to have the option of substituting say a RD track in place of the existing midi drum track. But because a given measure contains twice as many beats as it should, when rendering a RD track the drums sound at only 1/2 the tempo that they should. I never thought of first rendering the tracks to audio, and then changing the tempo - that could be one possible solution. Thanks for pointing that out, Rharv. However I'd rather be able to keep the midi options open by not doing so.

To Flatfoot, thanks for pointing out the "Edit - ExpandX2" command in BIAB; I was not aware of that. I will try pulling the midi into BIAB and see if that will accomplish the goal.

Probably seems sort of trivial, but I've run into the same situation with a couple of other pre-recorded midi files and would like to be able to solve this. Thanks for your help Rharv and Flatfoot.

Terry

BIAB/RB 2018 PlusPak. Dell Inspiron23 running Win10, 12GB RAM, 2.5GHz i7, Presonus AudioBox USB interface.