“Our recording process has been somewhat glacial,” jokes Sarah Davis, the singer and keyboardist / glockenspielist for earthy, expressive Philly rock combo Acres of Diamonds. The band’s excellent self-titled EP dropped in summer of 2010, and it has been working on the followup at an extremely measured pace in the time since. But that’s completely fine; if the end result is a collection of songs as rich and inspired as today’s Philly Local Phile, AOD’s brand-new number “Penultimate,” it will be absolutely worth the wait. Stream or download the song below, and catch Acres of Diamonds in concert next weekend when it plays Milkboy Philly on Sat. Feb. 4 with Brown Recluse and recent PHL Bandcamp Hunter stars Instamatic.