Georgios (Yorgos) Kertsopoulos is a Greek-Canadian concert classical-flamenco guitarist, composer, guitar and string constructor, researcher, inventor of the ''mathematic model of the guitar'' and author, presently teaching the guitar at Attiko Conservatory in Athens-Greece.

Welcome to "KERTSOPOULOS AESTHETICS", the revival of the different forms, tunings and sound timbres the guitar possessed in its history.Yorgos Kertsopoulos is a soloist in classical and flamenco guitar. Composer and professor of the guitar, he specializes in invention and construction of guitars, strings, loudspeakers, microphones, equalizers, mixers and amplifying systems. A researcher and inventor of theoretic models based on scientific applications has found international acclaim on his publishing (DAS MUSIKINSTRUMENT--Frankfurt 1983, Heft 9/ September 1984, in German and English-"The Physics of the Guitar") and international presentation of "the Guitar's mathematic model and Geometric progression" (1983, International Music Messe-Frankfurt, College of Furniture-London and seminars to respected luthiers and guitarists of England invited by GUITAR magazine of George Clinton...from now on after this presentation and know-how given by mr. Kertsopoulos, better guitars will be constructed throughout the world. I can personally assure you of this fact because now we have no more secrets in construction. His work is so unique in its scientific approach but also so full of traditional truths, it includes everything...Jose Ramirez (at the press conference given by Y.Kertsopoulos at the Music Messe in Frankfurt-1983). In 1972 won the first prize at the International Guitar Competition of Milan and in 1975 obtained his soloist diploma in guitar (First prize, National Conservatory of Athens under Dimitri Fampas). He has given concerts in Europe, U.S.A. and Canada and played with orchestras (New York chamber orchestra-U.S.A. 1978) at the time he lived in Canada and was professor of guitar at two universities (Concordia-Montreal 1976-81, State University of New York-Plattsburg 1978-81). In 1994, he presented his "pedal guitars" where each one out of ten different constructions depending on the constructional design gave in their own specific manner enhancement to the guitar's sound in a similar manner the pedals of the piano do for the pianist. Also, in 1994 he presented the "Kertsopoulos Aesthetics", involving hundreds of different guitar "aesthetic" sounds which can be produced from a guitar varying accordingly in timbre, volume, character and tuning pitch. This is achieved through his invention and construction of strings made of new to the guitar acoustic materials. His metallonylon and metallonymatic trebles for Baroque-Renaissance or modern music are a reality in the guitar world and many guitarists play with these for their unique timbre, sonority, volume and special interpretational capabilities. All tunings are now possible from --5 to the 12th fret with the "Kertsopoulos Aesthetics" with especially designed strings of numerous combinations in color and timbre for each tuning chosen. (Excerpt from the CD entitled "Kertsopoulos Aesthetics" Produced by Plinthos 99).
Smaro Gregoriadou, an internationally acclaimed soloist guitarist, composer is the official international artistic representative in concerts and recordings of the "Kertsopoulos Aesthetics". Many internationally acclaimed guitarists-professors have studied and obtained their diplomas under the teaching of Y.Kertsopoulos among them: S.Gregoriadou, D.Blazaki, M.Spanggaard, P.Deligiannis, A.Mazi, K.Stavridis, E.Kapetanaki, E.Theofanous, E.Sfikas, K.Zarkadoulas, M.Bafounis, M.Sakellaraki, N.Kakavelakis...
...Being a holder of different discoveries in the theoretic and practical constructional field of the guitar and acoustics in general, Y.Kertsopoulos constructs instruments of an unmatched (by today's standards) acoustic performance in quality and sustain, in concert hall conditions (DAS MUSIKINSTRUMENT-Frankfurt 1983, Heft9/September 1984).
The great master Jose Ramirez wrote the following dedication letter to Y.Kertsopoulos for his work on the "Mathematic model and geometric progression of the guitar-The Physics of the Guitar":
"The work realized by mr. Kertsopoulos on the mathematical configurations of the guitar's outline deserves all my respect and admiration not only from its scientific approach but also from the fact that it is a serious study enlightening all these delicate details found on the form of the instrument not defined sufficiently by tradition. With my regards, signed Jose Ramirez, April, 8, 1983".
Highly recommended: Newly released CD, reinventing guitar! by Smaro Gregoriadou (July 2009) by DELOS music. For more info. please view: http://www.delosmusic.com/.
Space-Time Theory Vol. A' The philosophy of space-time by:Georgios K. Kertsopoulos has been published by: SYNCHRONI EKDOTIKI and was exhibited at the FRANKFURTER BUCHMESSE 14-18 Oct. 2009. Yorgos was present at the fair and gave a press conference on Fri. 16, 15:30-16:30 at room EXPOSE, Halle 3.C, Eastern.
For more info. please see:
http://space-timetheory.blo... /