Guillermo Klein is a highly esteemed Argentine composer, pianist, and vocalist, renowned for his innovative contributions to the world of jazz and contemporary music. Born in Buenos Aires, Argentina, Klein's musical journey led him to Boston's prestigious Berklee College of Music, where he honed his craft before moving to New York City in the 1990s. It was in New York that Klein established his distinctive sound and vision, particularly through his formation of the Guillermo Klein y Los Guachos ensemble. This group, featuring an array of international musicians, has been a crucial platform for Klein's intricate compositions and arrangements which seamlessly blend elements of jazz, classical music, and Argentine folk traditions.

Over the years, Guillermo Klein has built an impressive discography that showcases his evolution as an artist and his commitment to pushing musical boundaries. Some of his most notable releases include "Los Guachos V," celebrated for its rich textures and complex harmonies; "Live at the Village Vanguard," which captures the electrifying energy of his live performances; and "Carrera," a testament to his skill in crafting deeply emotional and intellectually stimulating music. Albums like "Bienestan" and "Otro Suelo" further exemplify Klein's ability to explore the depths of minimalism and impressionism within a jazz framework, earning him acclaim from both critics and audiences worldwide. Through his prolific output and unique artistic voice, Guillermo Klein has cemented his status as a visionary force in contemporary music.