Proyecto Sur is Boente's acoustic project and reflects Dario's creative side in the context of piano trio, but sometimes using a forth element (percussion or a melodic instrument).
Projecto Sur's repertoire consists of Boente's original compositions , Jazz and Argentine standards, all strong influenced by Brazilian, Jazz and Argentine music.
Musicians that have played with Proyecto Sur include: Drummers Antonio Sanchez and Daniel Piazzolla, Vibraphone player Christos Rafalides, bassist Boris Koslov, and Pablo Aslan,  percusionist Daniel Sadownik and harmonica player Gregoire Maret, among others.