Yes, the Music Creator has been very tricky to run in emulation on my Mac. Originally, I could not get the installer to work in DOSBox, but it
did work in QEMU.
After installing the TMC software to a hard disk image, it ran for me in both emulators. However, it wouldn't play music in QEMU -- though the same hard drive image will play music for me in DOSBox!
So, yes, it works for me locally in DOSBox. But for reasons I don't understand, the music does not play in the Internet Archive’s version of DOSBox.
The original installer files can be downloaded here:
https://breakintochat.com/blog/2022/11/29/unearthed-kirschen...