MAMEUIFX32 0.136u4 is released.MAMEUIFX32 is a derivative unofficial build based on the original MAME/MAMEUI source code. MAMEUIFX32 has these these improvements over regular MAME:

MAMEUIFX32 0.136u4 changelog:
Updated to MAME 0.136u4 - MAMEUI 0.136u3
- Added "Listen game music with M1" menu voice to the GUI. (M1 already included)
- Fixed MAME Testers bug ID 03754. (scontra: Flaws in sound emulation) [hack]

Download:MAMEUIFX32 0.136u4
Source:Here