JP Balcázar (bass) Marco Mezquida (piano) Carlos Falanga (drums) Carola Ortiz (voice, clarinet) Sometimes, I think it might be easier to list the Barcelona musical ensembles that don’t feature Juan Pablo Balcázar (or JpB as he’s otherwise known). From swinging jazz to Portuguese songstering to edgy hip-hop, he’s pretty ubiquitous. This evening featured a kind…