Struct Music 

pub struct Music { /* private fields */ }

A controller bound to one mixer and one fixed transport. It does not own sounds or mutate voices on the control thread; future operations target whichever track is active when they actually execute. Dropping it does not stop its track.

Implementations

impl Music

pub fn new( handle: &mut MixerHandle, transport: Transport, bus: BusId, ) -> Result<Self>

pub fn transport(&self) -> Transport

pub fn transition( &self, handle: &mut MixerHandle, track: Track, intensity: f32, timing: Timing, fade: Fade, ) -> Result<MusicId>

Replace this controller’s track. All new stems start at source frame zero, fading in while the previous track fades out over the same duration/curve. Preparation/queue errors change no voice; audio capacity failures are events.

pub fn set_intensity( &self, handle: &mut MixerHandle, intensity: f32, timing: Timing, fade: Fade, ) -> Result<MusicId>

Fade the active track’s layer gains without restarting or pausing any source.

pub fn cue( &self, handle: &mut MixerHandle, sound: impl Into<Sound>, gain: f32, timing: Timing, ) -> Result<MusicId>

Layer a one-shot cue over music. Track transitions/stops do not stop cues.

pub fn stop( &self, handle: &mut MixerHandle, timing: Timing, fade: Fade, ) -> Result<MusicId>

Stop all this controller’s track voices, including earlier crossfade tails. Independently layered cues keep playing.