[Bug 55688] dmusic:dmusic - test_default_gm_collection() crashes on macOS

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=55688

--- Comment #2 from François Gouget  ---
On my Debian machine default-GM.sf2 is provided by timgm6mb-soundfont. I'm kind
of amazed that it got installed at all. As far as I can tell it's a dependency
of a dependency of some GStreamer plugins.

Anyway. On macOS it seems like .sf2 files should be in
Library/Audio/Sounds/Banks. The per-user copy (in ~/Library/Audio/Sounds/Banks)
would certainly be empty on a cloud machine. And the system-wide copy (in
/Library/Audio/Sounds/Banks) turned up empty on two machines I checked.

Furthermore a find / -name "*.sf2" turned up empty on Monterey (21.6.0) and
Mojave (18.7.0). So to get sf2 files we will need to install them ourselves.
But I did not see any Homebrew package that would be an obvious match.

Hopefully someone knows more about how Midi support works on macOS.

Is there a way to detect whether Midi is supported and to skip if not?