Add audio adjustment support to `Metronome`
Add audio adjustment support to `Metronome`

peppy/osu-new,smoogipoo/osu,peppy/osu,NeoAdonis/osu,ppy/osu,smoogipoo/osu,peppy/osu,ppy/osu,ppy/osu,UselessToucan/osu,smoogipooo/osu,NeoAdonis/osu,smoogipoo/osu,UselessToucan/osu,NeoAdonis/osu,peppy/osu,UselessToucan/osu