- Annoying that many of the MIDI source files say it was the Joe Cocker version but it was more likely The Box Tops' version; it was a real challenge to find a Joe Cocker version but when I did, I decided to include versions by both artists.
- Leon Russell is one of my all-time favorite pianists & performers
- Props to the many users that posted their OPB versions of The Letter to Resources
- The Box Tops v1 & v2 NP StdPBass 63-91
- The Box Tops v4 STAX Piano 4 Part
- Joe Cocker v5 STAX Piano 4 Part
- Beta BeatBuddy Manager version ≥1.6b
- Firmware > v2.0.4 (recommended)