User blog comment:RottenBlock/Toushin Toshi 1 Patch 1.5/@comment-80.144.159.180-20200411101948/@comment-31720212-20200413212827

I'm afraid I'm still not able to reproduce the error on my end. Looking at the code, it's also very straightforward, only swapping the currently active MIDI file (it's certainly not touching anything changed by my patch, so I suspect the problem would persist even on the base game). Is it possible you have some sort of MIDI driver program that might be getting the way?