Neurosis marks 30 years with Fires Within Fires, their 11th album. It's uncharacteristically economical, clocking in at a mere 40 minutes, their shortest since 1992's Souls at Zero. Engineered by Steve Albini (their sixth collaboration in a row), it takes stock of the places Neurosis has been since leaving behind their post-hardcore roots to pioneer the strange world of "post-metal." Opener "Bending Light" commences with a slow, doomy bassline and a guitar vamp that directly references Pink Floyd's "Nile Song" - specifically the Necros' mid-'80s cover - but uncouples itself to wander more jagged atmospheric terrain with sparse, bluesy guitar lines and darkly hued sonic effects from keyboardist Noah Landis…