What makes Down IV – Part I by Down notable?

'Down IV – Part I' received positive reviews, debuting at No. 38 on the Billboard 200 chart and showcasing a resurgence of interest in the Southern metal genre. The album's sound and lyrical depth influenced subsequent artists within the stoner and sludge scenes, reaffirming Down's pivotal role in shaping these genres. Released on September 18, 2012, 'Down IV – Part I' marked Down's first studio album in nearly 20 years since 'Down II: A Bustle in Your Hedgerow' in 2002. This period saw the band returning to their sludge and stoner metal roots after several lineup changes and side projects from members like Phil Anselmo, who had been focusing on his work with Pantera and Superjoint Ritual during the hiatus.