Weirdly arriving just before a new Mars Volta album, Cryptomnesia (Rodriguez Lopez Productions) is nominally a side project by the band’s guitarist-composer. But El Grupo Nuevo de Omar Rodriguez Lopez are really a five-piece Volta, including singer-lyricist Cedric Bixler Zavala, pressing their precise fusion of rhythmic hysteria, Rodriguez Lopez’s circular-riff assault and Bixler Zavala’s bleating psychosis into something like pop-song length, like 2005’s Frances the Mute in high-voltage microcosm.