Seems to be doing the job.
Glad you found our hack useful. @Brendor and I even made waves in Japanese hacking circles with this patch so apparently we are the first and only ones to make such a hack.
Have you read my importing custom sound samples tutorial? I definitely think your songs would benefit from instruments ripped from a game such as Mother 3 which has some really nice acoustic piano, overdriven guitar & trumpet samples. Advance Wars has some colourful stuff too. Both of them blend in very nicely with FE instruments so they’re good sources to draw on.