More or less a live studio jam session recorded in Havana, Espontáneo (as in “spontaneous”) was put together by producer-guitarist Dayron Ortega Guzmán and his friends, guitarist Maykel Elizarde and percussionist Eduardo Silveira. With Guzmán calling the tunes, the trio created a gritty, appealing nine-track sampling of Afro-Cuban grooves and song forms with deep folkloric...