The Samurai Guitarist recorded himself playing the Beatles’ Here Comes the Sun reeeeally slowly for 30 minutes and then sped the audio up by 20 times, which made his guitar sound like a violin.
Ok so my original plan was to rerecord the guitar normally when the video was done. I have a musical notation software that I plugged in everything exactly how I wanted to play it. I then added a metronome to trigger every 1/32nd note and set the tempo to 7 bpm, knowing that when sped up 20x that would be a nice tempo. It would also take 30 minutes or so which should be about the perfect time for a sunrise.