What is the structure of a MIDI file?

Question

I want to manually have a function that creates a MIDI file according to users demands, for example.

User write 2 patches that contain 8 bars of 4 quarters of A4 (Co

Answer 1

From all the MIDI info I read recently, this seems to be the most comprehensive tutorial, in the other hand the following link is a good place to get started:

MIDI structure at the official MIDI website

Also, NAudio is a .NET library that works with MIDI files by Mark Heath.
I've also found this link very useful, I thought why not share it with people here.

I think this is the best .NET API for messing with MIDI files.