evolutions, multi parametrics (utilizing several simultaneous performance and compositional resources in a single line or stave) as well as internal sonic imagination analysis. "Ginantria", for cello solo, 1990, is the best example of this period. A number of out-of-catalogue pieces also belong to this stage: "Traepes", 1985, 4:58", Glissandi studies, made before his studies). Chamula harp and tuning forks. "Filos", 1987–89, 12:00" Chamber concert, never premiered. "Lomos", 1989, 7:35" UPIC System "Ginantria", 1990, 12:05" Violoncello. "Homenaje", 1991, 7:39" UPIC system Postmodern-Synthesis Period (1993-04) In 1991 Sandoval met Conlon Nancarrow and began work as his assistant (1991–94). The influence of Nancarrow's music was strong at this time while some remains of Xenakian style were also present. Sandoval's musical thinking began to lose channelization. This lack of "school", "channelized impulse" or "Style" ("Style is just a super thin ham slice between your "freedom" and your own limitations" (Sandoval, 2009)) remained a characteristic of his work and can be easily identified with a radical postmodern approach. Besides this, it took Sandoval almost four years to assimilate and synthesize the influence of both Estrada and Nancarrow, apparently the polar opposites of one another but in fact both belonging to a Cartesian, rational, object-oriented way of thinking. Sandoval's music from this period is described well by the list of 16 postmodern music characteristics defined by Kramer (Kramer 2002, 16–17). Between 2002 and 2003, just prior to relocating to Germany, Sandoval published two of his "manifestos": "Imaginación, análisis y posmodernismo" and "De la fenomenología al ejercicio estético, o una apología del cinismo". Still in Catalogue from the "Fellini Circus Series": "Slow piece for Player Piano", 1993, Player piano. "Fast Piece for Player Piano", 1993, 6:23" Player piano "Fast Piece for computer controlled acoustical instruments", 1994, 6:23", pf., xil., barrel organ, vib. and accordion. "La Pasión Según la Gente", 1999, 25:27" Indian Brass band, Cl, B.cl, percusión and tape "8to-01", 2000-01: Ca. 15:00", Flute, G FLute, Cl., B. Cl., Pf and string quitent. "CcMd-01", 2002, 13:47" String quartet and CD. Premiered by the Arditti String Quartet. "PfMd-01", 2001, 16:35", Piano and CD. "Pf-03", 2002, 7:49", Piano. "Bcl-01", 2002, 7:49", Bass Clarinet. "KPmd01", 2002–03, Ca. 15:00", Orchestra, piano and tape. "K-02" 2004, Ca. 10:.00", Orchestra and toy airplanes. "K-03" 2005, Ca. 9:.00", Orchestra. Still in catalogue transition pieces: "Negative Study for Sensible Hands", 1996, Sensors on Hands, first gloves prototype. "Suite Antimodem", 1997, 50:00", ETC-ETC Ensemble. Bio-energetics, disposition