UPDATE 9/1/19: I removed the video tutorials as discussed in my original post but I’m leaving the written notes as a general guide.
Reaper tutorial notes r1.zip (5.0 KB)
Is this a text book solution? Probably not because it’s based on my experience and preferences using the BeatBuddy and as I completed each part of the tutorial, I thought of ways to improve what I was doing. Keep in mind that although I like Reaper, it’s not my digital audio workstation (DAW) of choice and since I use a Mac, Logic Pro X (LPX) is a better fit for my workflow. Accordingly, I chose not to pay for Reaper on top of LPX. If you decide that you like Reaper, it’s worth the amount that Cockos is asking for it.
You can print the Reaper Tutorial Notes to help get you started; it may be good enough to use as a standalone).
Part 1. Finding MIDI source files for your BeatBuddy song
Part 2 Use Reaper to transcribe the drums for a BeatBuddy song; the folder includes several files to accompany this video
Part 3 Use Reaper to transcribe the bass for the BeatBuddy
Part 4 Export Drums & Bass to a Single MIDI track
Part 5 Create a song in the BBM; the folder includes a file that accompanies this video
Part 6 tbd (since the George Strait song I used has a piano part, I might show you how to reuse and modify parts 1-5 to incorporate the piano track).