Hey & welcome to GT!

Originally Posted by: vanrooy.gertAbout the Em chord, though: the first thing I noticed, when opening the window to look at other players, was that some out there play this chord with 2nd and 3rd finger on the 2nd fret, instead of 1st and 2nd finger. Any reason for that?

There can be many ways of fingering any given chord. It can depend on the individual player, or the context of the music.

Playing it with the the index & middle finger will make it easier to also include notes on the upper strings with your ring & pinky fingers. Alternately, playing it with your middle & ring can make it easier to use your index finger to play the G string 1st fret for a bluesy type lick.

I encourage beginners to find one way to get it done that works for them! Then later as you expand your skills try to add variations to your chord fingerings for variety. Or just wait until you encounter a musical situation that requires a different fingering, then learn it!

Hope that helps!