Struct NoteBlockPlayEvent 

pub struct NoteBlockPlayEvent<'a> {
    pub dimension: Dimension,
    pub player: Option<u128>,
    pub player_entity_id: Option<i32>,
    pub pos: BlockPos,
    pub instrument: &'a mut NoteInstrument,
    pub note: i32,
    pub cancelled: bool,
}

What Hooks::note_block_play is told. Each field is that hook’s argument of the same name, described in the hook’s doc.

Fields

dimension: Dimension

player: Option<u128>

player_entity_id: Option<i32>

pos: BlockPos

instrument: &'a mut NoteInstrument

note: i32

cancelled: bool

Whether the event is cancelled: by the game or an earlier listener, or by this one setting it. Only a listener that receives cancelled events (#[listener(receive_cancelled)]) sees true, and setting it back to false lets the game’s behaviour run.