With Hourglass, Antibalas returns to its instrumental roots. Previous albums featured lyrics that addressed topics like patriarchy, climate change, militarism, late stage capitalism, oligarchy, white ethnonationalism, and the genocide of Native Americans. In this album the group rearticulates these themes, however speaking through melody and rhythm. "Once a song has lyrics, everyone who doesn't speak that language is on the outside. We use rhythm and melody to translate the emotions in the album and make it universally accessible," explains the co-producer/founder Martín Perna. The new album draws on compositions written by several current and emeritus members of the group. "Hourglass" begins with a plaintive and ecstatic tenor saxophone solo before digging into an intense 12-8 groove. The group pivots with "Lo-Life" highlighting the group's ability to swing a lá Machito or the 1970s Ghanaian dance band leaders like Gyedu Blay-Ambolley. Others like "Solace," "Escape" and "La Ceiba," conjure echoes of the classic Lagos afrobeat sound, albeit spoken with a Brooklyn accent. "Oasis," the album's finale, is a step into a psychedelic unknown future, with a deep sense of liberatory funk eternally at its core.