Deem Spencer, a mousy 22-year-old rapper from Jamaica, Queens who coos his lyrics, makes music for the over-thinkers. There aren’t any traces of the historic Queens of hip-hop yore in the verses he intones. He’s blissfully unconcerned with NYC rap lore and restoring the feeling. Picking out his raps can be like catching conversation fragments from someone just barely within earshot, beneath the buzzing murmur in a restaurant. His songs exist in the cracks between the mundane and profound