melanchall 

DryWetMIDI is the .NET library to work with MIDI files and MIDI devices. It allows: * Read, write and create Standard MIDI Files (SMF). It is also possible to read RMID files where SMF wrapped to RIFF... More information

This is the nativeless version of the Melanchall.DryWetMidi package. Please read https://melanchall.github.io/drywetmidi/articles/dev/Nativeless-package.html to learn more.