A PAT file is a list of instrument names along with other data that tells a program like Band-in-a-Box what midi data to transmit once a user selects a patch, otherwise known as an instrument name. Once a patch is selected the patch midi data is transmitted from the computer to the keyboard or sound module through a midi or USB cable. Then the keyboard or sound module will be able to play audio based on the Band-in-a-Box midi data.

Your keyboard manual should describe the settings you need to make so the keyboard can receive midi data.


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