There are two main schools of hollowbody (and semi-hollow) player: those with a connection to jazz/blues roots who need smooth tone, and songwriter-guitarists who like their rounder tone and looser low end. Early electric guitar recordings universally feature hollowbodies because solidbodies hadn’t been invented yet. Gibson's ES-150 ruled the roost in the 30s, but it was a basic design; an acoustic with a pickup, if you like. In the 50s Gibson introduced new models, the ES-330, the ES-350T, the ES-355 and the standard-bearer, the ES-335 with its centre block and hollow wings striking a balance of sustain with less feedback. Gretsch's G6120 and White Falcon appeared around this time and the semi-hollow Rickenbacker 325 got big off the back of the Beatles.