What you've described is normal operation for Band-in-a-Box. Band-in-a-Box regenerates each track to match the new tempo.

If you want to have multiple tempos in a song, set the initial tempo in the control panel then use the F5 bar settings to adjust the tempo throughout the song. All tracks will adjust tempo to match the F5 bar settings.

Band-in-a-Box regenerates all tracks to match tempo settings. Frozen tracks will also be regenerated to match a change in tempo settings.


Jim Fogle - 2025 BiaB (Build 1128) RB (Build 5) - Ultra+ PAK
DAWs: Cakewalk Sonar - Standalone: Zoom MRS-8
Laptop: i3 Win 10, 8GB ram 500GB HDD
Desktop: i7 Win 11, 12GB ram 256GB SSD, 4 TB HDD
Music at: https://fogle622.wix.com/fogle622-audio-home