Miguel Zenón, Esta Plena (Marsalis Music). The alto saxophonist and composer illuminates and elevates la plena, the peoples’ music of his native Puerto Rico. Zenón augments his quartet with percussionists playing pandero, seguidor and requinto drums to provide the music’s rhythmic heart. Zenón’s playing further establishes him as one of the most important young soloists in jazz. Pianist Luis Perdomo, bassist Hans Glawischnig and drummer Henry Cole are impressive throughout. Zenón aids understanding of the music with a scholarly liner essay tracing the history and cultural importance of la plena.