If I may take this small liberty, I reckon this is a wonderful project to propose: a singer should take a stab at covering Passing By (1971) lyrics version, using the official Beach Boys instrumental backing track, so that this hidden gem yields some great results, not that I don't appreciate it Brian's rough vocal. Much like the Foo Fighter's member sang Holy Man so wonderfully.
I think it's a fine track, but the quality and the vocals are a little 'off' of course, it being a reference cassette copy