The experience of listening to Brooklyn duo Mountains isn't all that unlike burying yourself in a book while riding the subway, only to discover you've overshot by two stops. The pieces develop at such a glacial pace that you hardly realize anything is changing, until suddenly you are faced with an entirely new environment--the opening title track spends nearly 12 minutes exploring a reedy drone before it identifies itself merely as an introduction to the acoustic guitar picking that carries us into the rest of the album. This continues on throughout--strumming guitars somehow become the white noise of a rain storm, and time passes without notice. Not recommended for operators of heavy machinery.