Re: Trying my hand at guitar
Handy skill being able to recognise pitches. If you can name pitches out of the air without a reference, then you have what is known as 'Perfect Pitch' which is both a blessing and a curse (my brother has it). Essentially, you can work out notes easily and listen for chords with greater accuracy - without having to use cheeky tricks like intervals to transcribe music. I do not have perfect pitch and sometimes I wish I had, and then I realise that most people with perfect pitch get highly irritated when a note is played slightly off the norm.
I couldn't deal with that. I listen to a lot of music that doesn't necessarily deal in straightforward tones...
As for guitar - go with it. I play all the time (I just put one of mine down actually) and there's nothing like a late night (in this case, early morning) noodle to see what you can get.