Welcome to the forum.

When starting a new song, if you select a style in 3/4 the song will be in 3/4.

If you are asking how to switch from 4/4 to 3/4 within a song, go to the measure where you want the change to occur and press F5. This brings up the Bar Settings dialog where you change the number of beats per measure. This change will stay in effect until you change it in another bar.

Note that if you want 4/4 in your song but want the song to begin in 3/4, BIAB requires that you use 4/4 for the song.

If these answers don't make sense to you, we can go step by step. Just please give us as much detail as you can about what you want to do.


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; Presonus 192 & Faderport 8, Royer 121, Slate VSX, Adam Sub8 & Neumann 120 monitors.