Play audio file along with a WLED Playlist?

I have a few playlists built out on my WLED device and I would like a ln audio file (music) to play when I play a particular playlist. The audio files are about 5 minutes in length and there would be 4 or 5 of them. I’m wondering what the best way to go about that is?

Ideally the audio playback device would be another component, like a pi or an ESP board that syncs with the WLED light.

It would be great if triggering one could fire the other, but I can probably get a third device to play the light show and music at the same time if need be.

Thoughts? TIA