I mean for the purposes of eventually playing a song of at least 2 minutes. (A normal song, not Mary had a little Lamb) Though I know it will take a lot of time from now until then.
Most Helpful Girl
Taught myself to play a couple of songs on the keyboard when I was bored. I played by ear, so I'd definitely say that keyboard is easiest out of the three. Although, you should try out the kazoo. No one has ever made a fool of themselves playing that