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Is there a way that I can hide the chords in BIAB? So that i can choose 4 bars and play it in a loop, without knowing which chords it is? I would be surprised if that is possible, it doesn't hurt to ask.

Your question implies a random 4 bar selection which is not possible.

However, you can always select 4 bars on the chord sheet and then switch to a view you're not use to seeing. Perhaps the Tracks, Notation or Piano Roll view would work.

Another idea is to change settings so the chord sheet displays chords in a manner you're not familiar with such as Do-Re-Mi or Nashville Notation

Jim Fogle - 2025 BiaB (Build 1128) RB (Build 5) - Ultra+ PAK
DAWs: Cakewalk by BandLab (CbB) - 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