Ever decided to go through Massive's presets and listen to them? That's a lot of sound.
Some synths will, invariably, be more complex than others, and have more sounds.
However, even the simplest of synths can be complex when you know how to automate them. The Minimoog, while rather simple in comparison to Massive or FM8 in regards to the interface or controls, can have a large variety of textures. It's always fun to
and seeing what you come up with!As far as making a song in Massive or FM8, if you feel you've gotten enough knowledge under your belt, you certainly can. Ultimately, it's up to you—would the challenge be worth it, or not? More likely than not, the less you know about how the synth works (through first hand experience, no less), the more frustrating this tends to be, especially if you're focusing on programming your sounds by hand, rather than opening up patches to run with.