Skyrim Mod:Mod File Format/MUSC

MUSC records contain data regarding groups of music tracks.

C	SubRecord	Name	Type/Size	Info
+	EDID	editorID	zstring	Editor ID
+	FNAM	flags	uint32	Flags (bitfield) 0x01 - Plays One Selection 0x02 - Abrupt Transition 0x04 - Cycle Tracks 0x08 - Maintain Track Order (only allowed, if "Cycle Tracks" is set) 0x20 - Ducks Current Track
+	PNAM	data	struct	4-byte struct uint16 Priority (1 is highest priority, 100 is lowest priority) uint16 Ducking, in dB; scaled by100, i.e. 126 means 1.26; allowed maximum is 10000, i.e. 100.00
+	WNAM	fadeDuration	float	Fade Duration (seconds)
+	TNAM	music tracks	formid[]	Series of MUST form IDs, total count arbitrary