He was invited as a guest soloist by the Lorient Big band- the Bretagne regional jazz orchestra and he did several tours with: 1996 in Latvia, 1997 in Vietnam, 1998 in Cambodia and 1999 in French Polynesia.

In 1999, he created his first quintet with Stéphane Guillaume (saxophone, clarinet), Emmanuel Codjia (guitar), Thomas Grimmonprez (drums) and Antonio Licusati (bass), which won third prize in the competition "La Défense".

He participated in Paris Jazz Big Band, played with Toots Thielemans, Phil Collins and Henri Salvador under the direction of Quincy Jones, as well in Bertrand Renaudin's "l'Arbre Voyage" with Herve Sellin, Yves Rousseau, and Jonas Knutsson.

Kornazov recorded his first album with original music "Staro Vreme" in 2001, "G meet K" with Kenny Wheeler and Geoffroy Tamisier's "OLH Acoustic", plus "A Suivre" with Paris Jazz Big Band.

In 2004, Kornazov recorded "Essence de roses", his second album with original music with Stéphane Guillaume (saxophone, clarinet), Emmanuel Codjia (guitar), Thomas Grimmonprez (drums), Sebastien Boisseau (bass), Krassen Lutzkanov (kaval) and Geoffroy Tamisier (trumpet) Kornazov was invited in 2005 as a permanent member of Vienna Art Orchestra, conducted by Matthias Rüegg and also in the sextet of Jean-Marie Machado "Andalucia".

In 2008, Kornazov recorded "Marcia New York Express" with Herve Sellin septet and participated in several festivals: Vienne, Marciac, Ramatuelle, Nevers, Les Arenes of Montmartre.

In 2012, he joined Denis Charles's «The compagnie of musiques à Ouir»,[4] Geoffroy Tamisier's "L'Harmonie de Poche" and the new septet of Olivier Le Gois, recording the CD ABSTRACT with.

In 2013, he created three new personal projects: «THE MAJESTY OF KENNY WHEELER» (tribute to the great Canadian trumpeter and composer) with Claudia Solal-voice, Jean-Charles Richard-sax soprano, Manu Codjia-guitar, Guillaume de Chassy-piano, Christophe Marguet-drums and Matyas Szanday – base, "Gueorgui Kornazov «BRASS SPIRIT» with Aymeric Avice – trumpet, Didier Ithurssary-accordéon, Bastien Stil – tuba and Eric Echampard- drums and the duo "SUZNANIE" with the pianist Leonardo Montana.

Plays with Nguyen Le project «THE DARC SIDE OF THE MOON» (Pink Floyd) and David Venitucci trio with Christophe Marguet (drums).