Allow for MIDI inputs and MIDI recording

[Firebolt391d]

When I wrote this forum post way back in 2017, I had no idea really what this website was. (This was my very first forum post.) Now, just the other day, (Nov. 20th, 2020,) it was announced on Discord that someone by the name of Liam has helped Jacob to create MIDI support and a MIDI recording utility.

Thank you Liam and Jacob. This website has come a long way, and it's nice to see these new features.
Thank you both for your hard work.