Started, not yet finished:
I under-estimated how tricky this would be.
I have an Actor that maps each note of each octave to a sound cue:
This was a lot of work to manually setup- 12 notes multiplied by 4 octaves, but presents a straightforward approach to get each reference.
The tricky part is figuring out how to filter these properties to get the appropriate note- how do I get DSharp1_Music_Note reference given a function taking “Note: DSharp”, “Octave: 1”.
That is still an open question.
I decided to solve the other side of the question- assuming there is code that successfully returns the correct UMetaSoundSource, how do I get my Instrument actor to consume it?
Currently, I have a concept of a InstrumentSchedule
For 3 bars, the drum kick will hit on the first and third quarter note. On the fourth bar, it kicks every beat.
This is sufficient if the note being played- the kick sound- is static every time.
It gets more complicated if the note that can be played is variable.
My solution here is to add a new property to FPerBarSchedule:
BeatsInBar is the existing setup, indicating to play something on the first and third beat.
Our new property is NotesInBar
I then updated the function that triggers on each bar to consume this new object.
I still need to figure out how to filter the references, but I’ll have to research it. It feels like filtering by a sets properties must have an established pattern.