EBMusEd is a ROM hacking tool for editing and playing back EarthBound's N-SPC sequence data.
For a tutorial on how to use it, check out the collection of EarthBound hacking-related tutorials on the CoilSnake Wiki, as well as the Code list reference in the Help menu.
EBMusEd was originally written by Goplat, who publicly posted the source code on starmen.net's PK Hack subforum.
Goplat has since stated that he isn't interested in developing this project any further, so this repository is provided for the community to continue working on it together.