Elementary Building Blocks, features the musicians who regularly perform with his quartet. One of these musicians is Héctor Jaca, a Puerto Rican guitarist based in Barcelona who graduated from the Puerto Rico Conservatory of Music and the Liceu Conservatory of Music in Barcelona. He is a regular collaborator on various projects and a member of the Guillermo Revuelta Quartet. He is also part of initiatives such as Irawo and has contributed to albums such as Cercle by pianist Biel Harper. Meanwhile, double bassist Pablo García started out as a self-taught musician. He furthered his training at the Escola Superior de Música de Catalunya (ESMUC) before moving to Madrid to study composition and flamenco. He specializes in fusing jazz and flamenco, as well as various contemporary musical styles. Catalan drummer and composer Pau Planas is based in Basel and has focused his artistic career on performance and composition, whether through his own projects or by collaborating with various international artists. He is currently pursuing a master’s degree in performance at Jazz Campus Basel. Together with Guillermo Revuelta on trombone and as composer, these three leading musicians present their debut album.
Recorded, mixed, and mastered at Soho Recording Studios by David Ruiz, Elementary Building Blocks takes us into the magical and mysterious world of prime numbers within the framework of contemporary jazz. It is a fascinating journey into the unknown, where rhythms, notes, intervals, and frequencies—the fundamental elements of music—are determined by an elementary mathematical pattern. Guillermo Revuelta’s unique musical style is the result of a passion for mathematics, years of research, and a successful musical career. He expertly combines these two worlds, creating tracks like the dreamlike and mesmerizing 1907 and Evidentemente Primos. These compositions are based on a creative exploration of the relationship between notes, arranged according to their correlation with prime numbers. This album is brimming with new textures and intentions, allowing for interaction among the musicians. Once again, it draws on the world of dreams in Abierto 13h, transporting us on a journey of initiation through the winding, dissonant passages of Devil’s Trinity— a piece inspired by the three-tone interval known as the Diabolus, the tritone that was forbidden for centuries. Obelus brings Elementary Building Blocks to a close. An experience designed to allow listeners to enjoy those unique, previously unheard moments arising from music created through elementary mathematics, and to help others enjoy them as well.
Tiny particles that make up a whole—seemingly unconnected but actually arranged in perfect, magical, complementary order. The magic of mathematics applied to emotion.




