Here is a list of all enum values with links to the structures/unions they belong to:

BJ_AUDIO_PLAY_SAWTOOTH : bj_audio_play_note_data
BJ_AUDIO_PLAY_SINE : bj_audio_play_note_data
BJ_AUDIO_PLAY_SQUARE : bj_audio_play_note_data
BJ_AUDIO_PLAY_TRIANGLE : bj_audio_play_note_data