Hi. There are at least three ways I can think of:

1. Choose a style that is a waltz. This will set your time signature at 3/4.

2. Press F5 (Bar Settings) on the first measure and change the beats per measure from 0 (which sort-of means, accept the default) to 3.

3. Load a BIAB song that you know is a waltz and alter it.


BIAB 2025 Win Audiophile. Software: Studio One 7 Pro, Swam horns, Acoustica-7, Notion 6, Song Master Pro, Win 11 Home. Hardware: Intel i9, 32 Gb; Roland Integra-7, Presonus 192 & Faderport 8, Royer 121, Adam Sub8 & Neumann 120 monitors.