So I heard there are some modularfags here. As someone who has

I use a cheapo 15 Watt soldering iron and it does the trick. Just make sure you can eventually find replacement tips for it. For practice, start with soldering components on a perfboard.

#1 mistake made by novices is not using flux.

>>1017812
What is flux core solder?

>>1017199
What a coincidence, I have recently also taken an interest in analogue synths, even though I'm not very musically gifted.

Anyway, I say try small and simple projects first, practice a lot and learn the basics of electronic components so you actually have a clue what you're doing when you're putting together all your components.

>>1017813
flux helps a lot