ZZ Top's First Album may not be perfectly polished, but it does establish their sound, attitude, and quirks.
Simply put, it's a dirty little blues-rock record, filled with fuzzy guitars, barrelhouse rhythms, dirty jokes, and Texan slang.
They have a good, ballsy sound that hits at gut level, and if the record's not entirely satisfying, it's because they're still learning how to craft records -- which means that they're still learning pacing as much as they're learning how to assemble a set of indelible material.
Too much of this record glides by on its sound, without offering any true substance, but the tracks that really work -- "(Somebody Else Been) Shaking Your Tree," "Backdoor Love Affair," "Brown Sugar," and "Goin' Down to Mexico," among them -- show that from their very first record on, ZZ Top was that lil' ol' blues band from Texas.