S turned two at the end of April. She has been singing songs and reciting whole nursery rhymes for a little while. Lately, she has also been sitting down at her keyboard or her xylaphone and she just starts "playing" them while she sings along.
She can also pick out a tune she knows even when just the music or hears the refrain. For instance, we were driving in the car and "Twinkle, Twinkle Little Star" was on the radio as background music for a commercial and she pointed it out to me.
Now, I should say that I appreciate music but am not "musical" per se. I played the trumpet in grade school/junior high but I picked it purely because I love jazz and I figured how hard could something with three keys be?