An Australian response to every noisy, scum-sucking band that ever crawled out of the Detroit hardrock scene, early Rolling Stones records in hand. The Seminal Rats make primal, ’70s-rooted three chord punk with chanted vocals, loud hard guitar, more and even more guitar. Omnipotent, a seven-song introduction to the quintet, contains such gritty numbers as “Rat Race” and “Part Time Girl.”