Jan was writing toward fulfilling the terms of his songwriting contract with Nevins-Kirshner (which was in the process of changing over to Screen Gems), and they viewed Jan as the principal creator of product for the company. He had quotas to meet. A documented fact. Jan was free to work with collaborators, so long as they understood that Screen Gems would be the publisher.
The fact that Brian was comfortable enough to collaborate with Jan—on a song that originated with Brian—knowing full well that Sea of Tunes would not be able to claim the publishing, is telling. Brian understood that Screen Gems would be the publisher, per the terms of Jan’s contract, which indicates Brian’s level of comfort with Jan’s creative input.
Jan and Brian split the songwriting royalty for “Surf City” 50-50 (the publishing royalty was separate, which is why Murry Wilson flipped out). The copyright for “Surf City” was filed on May 13, 1963, four days before the song was released.
Questions to ponder . . .
There was no way to know that “Surf City” would become a hit, let alone reach #1. So why would Jan want to deprive Dean of credit prior to release? Especially since they had co-written half of their first album together.
Why would Dean get credit for songs like “Bucket ‘T,’” “Schlock Rod,” and “Old Ladies Seldom Powershift,” but not the majority of other songs in the Jan & Dean canon?
If Dean co-wrote “Surf City,” he should have received credit. But there is no basis for minimizing Jan’s contribution. There’s a reason he was the one signed to the production companies as a songwriter, both Nevins-Kirshner and successor Screen Gems.
And remember, Roger Christian also claimed to have co-written “Surf City” . . . after it hit #1.