M1FX (2013/06/21) is released. M1FX allow you to play arcade game music in background with MAMEUIFX (Select "Listen game music with M1" in the File Menu or right-click on game menu).

M1FX (2013/06/21) Changelog:
- New version of M1FX, released upon request to add volume control.



You simply have to replace your old M1FX with the new one.

Download: M1FX (2013/06/21)
Source: Here