By the time The Beach Boys hit Youngstown on April 21, 1974 at the Beeghly Center, they were in the beginning stages of a decline in artistic (and commercial) relevancy as band leader Brian Wilson disappeared into severe mental illness. Despite not having Brian around on tour, the band was still very tight and capable of delivering a memorable performance (Rolling Stone named them band of the year in 1974).
I’m not sure this tour, which stretched from April to June, was in support of any release. The Holland album was the last release and that was in January 1973. I would assume this was a very hit-oriented setlist.
WHAT THE SHOW SOUNDED LIKE (AND MAYBE LOOKED LIKE): There’s an excellent radio broadcast recording of the June 14, 1974 show from New York’s Nassau Coliseum out there. A documentary film of the tour also exists. I have not seen it, but there’s a possibility that footage from the Beeghly show is in the film.