Yes. There are numerous styles that include only one instrument. However the issue is the single instrument is typically piano or guitar, not bass and many of those single instrument styles use MIDI patches (instruments).

You will find several styles named "blank" that do not have any instrument assigned. The blank styles do not have embedded midi patterns so they can not play MIDI patches. For that reason most people use RealTracks or MIDIsuperTracks with blank styles.

Note there are numerous blank styles. The one you select will depend if the song is 3/4 or 4/4, 1/8th or 1/16th note based and even or swing feel.

Load the style then select the RealTrack or MIDIsuperTrack you desire.

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Blank Styles

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