The first video is Brian Wilson's genius direction of the recording of the music, then the vocals, while the second video isolates just the vocals. Amazing stuff in these videos. Hal Blaine on drums and Frankie clapp on percussion.
The Beach Boys recorded “Wouldn’t It Be Nice” as the opening track on their landmark album “Pet Sounds.” It’s my favorite Beach Boys song, but I never knew how insanely complex Brian Wilson’s arrangement was: the recording includes two accordionists, two drummers, three bassists, three guitarists, four horn players, two pianists, and at least four singers. The main riff of the song is formed by the twin accordions (working together with a lovely walking bassline), though I would’ve been hard-pressed to tell you there was any accordion on that track until I watched the video below explaining how the song came together. What’s most intense: those twenty musicians’ parts were originally mixed down to a mono master. One track of audio to rule them all.