One of my hobbies is composing (music). I've studied since I was 8, learning trumpet and french horn. Shifted to guitar at 15, bass at 17, and taught myself "keyboard" around the age of 21 (mainly for the purpose of composing chords and harmonies running around the melodies). "Good Vibrations" is a standard of rock music genius; Brian Wilson's understanding of chords and dissonance puts him in the ranks of, say, pianist-composer Lyle Mays (although an entirely different thematic style).
Brian Wilson has my utmost respect as a composer and arranger.