He is the only saxophonist who regularly plays all seven members of that family, from the minnow sopranino to the Behemoth contrabass. Collaborating closely with tens of composers, Daniel Kientzy has aroused a repertory without preceding works for the seven saxophones (more than 400 pieces have been written for him).

Its treaty "The multiphonics", appeared to Publishing Salabert, has obtained the Great Price SACEM 1982, "L’art du saxophone " (1993),  and the monumental book "SAXOLOGIE" (1990).

He is Doctor the University Paris VIII  and  Doctor Honoris Causa at the Bucarest Music University.

Actually Daniel Kientzy has published (2006) 72 records in differents countries : France, Spain, Rumania, Russia, United States, Danemark, Corea, Portugal,  etc…

He has given to the saxophone a presence and a new scenic dimension. He is considerate as the "inventor"of the contemporary saxophone

Reina Portuondo has exercised her talent as electroacoustic musician in many places in the world. She has played an essential part in Nova Musica's formulation of enneaphony. The North American computer music magazine ARRAY, cited her works as an example of what every mixer-music concert should strive to be. She plays improvised music with KIENTZY & TELECTU. She works with the most importants studios for eleacoustic music. She has recorded many CD in France and abroad.