I probably haven't explained myself very well.

I am not trying to create a static song, but rather an on-the-fly accompaniment. This is regenerated each time I need it. So I don't think I can use the piano roll, as any adjustment would be a one time change.

I would like to alter the underlying midi to have a higher velocity per note.

For instance, if you create a new style, you can adjust the style patterns to have any velocity you wish. This balances the instruments to produce an acceptable mix. PGmusic suggest that this mix is balanced so that all sliders on the mixer are set at 90, making all styles equally loud.

The problem is that if you use supermidi tracks in a style, they have their own built in patterns which, as yet, I haven't found a way to modify.

I am strictly a native BIAB user. I don't use RB, a DAW or anything like amplitube. Not that I couldn't, just as yet I have had no need.

I hope that better explains my problem. When I spoke of "base",I did mean underlying, not bass as in low notes.

Thanks.

BIAB for Windows Version 2019 (643)
Windows 10 (1909)