The MIDI Volume Control utility lets you adjust system volume and Apple Music volume independently, and it configures itself automatically. The price is $1.99.
If you often need to change the system volume or the playback volume in Apple Music, you know how inconvenient it can be using the built-in tools.
This issue can be solved with MIDI Volume Control, which allows you to manage these parameters separately.
In the settings, you can choose the device for system sound output and, if necessary, fine-tune channel control.

In practice, you don’t need to adjust anything, because MIDI Volume Control automatically detects all required settings. And by clicking the icon in the Menu Bar, you can adjust system and Apple Music volume independently.

Price
There is no free trial for MIDI Volume Control. The purchase costs $1.99.