Immersive Melodies [Fabric/Forge]

Immersive Melodies Mod Guide: Instruments, Custom Songs & Mob Musicians

Immersive Melodies adds 11 craftable instruments to Minecraft, letting you play custom melodies from MIDI and ABC files with full multiplayer support. Mobs can spawn holding instruments and play random songs, Parrots and Allays dance to your music, and you can even connect a real MIDI keyboard for live performances.