Beats Off v0.1
Instructions for use

Before you begin, you must have a collection of VAG files you want to use. These must all be the same length (4 bars) and same tempo.
I recommend Awave Audio or MFAudio for converting other audio formats to VAG.

The left-hand side of the window lists available VAG files. 
1) Select a directory of VAG files with the "Load Folder" button
2) If files don't appear, they might need to be patched. Use the "Patch VAG Files" menu under "Tools" to do so.

The right hand side roughly resembles Beats' Jamming interface.
1) Drag a VAG file from the left side to one of the larger boxes on the right for use in that track. You can have up to 4 VAG files per track, and can name the track using the text box immediately below it.
2) The tabs are for the pages that are switched using the "R" button in game. These can be named with the text boxes in the upper right corner.

The bottom contains the song's artist and song name; tempo; and "Create BJS" button.
1) After all the VAG files are organized and everything is named to your liking, be sure to set the tempo to the same value as your VAG files and click "Create BJS".
2) The program will then prompt for a file name and create the BJS accordingly.
A minimal BULK.BAR file will also be created in a new JAM_0002 directory.
3) Move JAM_0002 to your unpacked Beats BAR directory (PSP_GAME/USRDIR/BARS/), overwrite the existing file, and repack.
4) Enjoy!