Frampton nowadays from his website
All my favorite musicians eventually become old Englishmen.
Meanwhile, bass content: low E has been the lowest note available to music for roughly 5 centuries. But modern technology allows us to enjoy these lower notes now, down to a low B, and they have been put to use in metal, amongst other genres.
I am occasionally called on to play lower notes than low E, but I prefer to tune a 4-string bass down to reach those notes. 5-stringers enjoy a thicker, wider neck and closer string spacing... but I don't.