One of the most unique voices in music today, John Maus is an enigma. His recordings are willfully lo-fi, and his deep baritone voice stands out enough to be immediately recognizable. After his third album, We Must Become the Pitiless Censors of Ourselves, finally got him the critical and fan reception that he deserved, he essentially disappeared for six years. During that time, he completed a PhD in political science (a significant shift from his undergraduate degree in musical composition) and built modular synthesizers. In October of last year, he finally re-emerged with the release of his fourth album, Screen Memories. Saturday night brought him to a sold-out and packed Rock and Roll Hotel for his first DC live appearance since that previous record.