This tutorial shows sound frequency modulation sound design using FMTS 2. This synth is developed by Xen-Arts and allows you to play microtonal scales, so I wanted to show a basic workflow that will give you some familiar FM synth sounds. At the end of the video you should be able to able to make an FM bass sound that wouldn't feel out of place on a Yamaha TX81Z, Sega Genesis/Mega Drive game, or AdLib sound card. Of course, FMTS 2 is much more powerful than that, and the workflow shown in this video can become the starting point for something much more interesting. Xen-Arts produce many VST instruments which allow you to play microtonal music. So far all of these VSTs are free, so there's no harm to get em all.