Mr. Tamez studied composition with Nicandro Tamez.

He also studied privately through workshops and seminars with André Richard, Daniel Catán, Mario Lavista, Manuel de Elías, Helmut Lachmann, Pierre Boulez and Karl - Heinz Stockhausen.

Mr. Tamez received a Masters degree in composition and philosophy from Universidad Regiomontana, Monterrey, Nuevo Leon, Mexico.

In addition Mr. Tamez attended the NIMES (New Interfaces for Musical Expression) and Résonances Music Technology Convention at the IRCAM - Centre Pompidou, Paris, France.

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He teaches privately since twenty years ago in Monterrey; as well as workshops in different cities in México, Argentina, Brazil, USA & Germany.

He was a visiting artist at CalArts  febraury 2013.

He´s a visiting artist/educator in the last CMS (Creative Music Studio) Workshops during 2013, 2014, 2015, 2016 & 2017 lead by Karl Berger.

He is the founder and leader of Non-Jazz, his group of twenty-four years.

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He is also the founder, producer and artistic director of the “International Musicians Meeting”. He is currently preparing for the twelve edition that will occur 2018.

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Mr. Tamez has performed in more than 192 countries including Mexico, United States, Italy, France, Germany, Austria, Sweden, Denmark, Holland, Turkey, Canada, Argentina, Chile, Colombia, Japan and extensively trough Middle East, Asia & Africa.

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Omar has played / and or recorded with Ramón López, Agustí Fernández, Gebhard Ullmann, Karl Berger, Ingrid Sertso, Conny Bauer, Felix Petry, Gabriele Hasler, Carl Ludwig Hübsch, Almut Kuhne, Frank Köllges, Olaf Rupp, Andreas Willers, Reggie Workman, Wadada Leo Smith, John Lindberg, Pheeroan AkLaff, Rashied Alí, Sonny Fortune, Andrew Cyrille, Sam Rivers, Bruce Arnold, Jonathan Golove, Michael Vlatkovich, John Bacon, Geroge Schuller, Ratzo B. Harris, Steve Baczkowski, Ronnie Burrage, Gerald Cleaver, Alex Coke, Joe Fonda, Harvey Sorgen, Herb Robertson, Steve Rust, Steve Swell, Lou Grassi, Michael Jefry Stevens, Tina Marsh, Jay Rosen, Angelica Sanchez, Vincent Chancey, Chris Speed, Hamid Drake, Adam Rudolph, John Cale, Abdullah Ibrahim, Chico Buarque, Badal Roy, Steve Gorn, Kenny Wessel, Ken Filliano, John Hollenbeck, Tyshawn Sorey, Marylin Crispell, Peter Mack, Kirk Knuffke, Warren Smith, Karl Berger´s Imrpovisors Orchestra, Ben Gerstein, André Jaume, Beñat Achiary, Sophia Domancich, Bruno Angelini, Rémi Charmasson,  Marc Ducret, Laurent de Wilde, Laure Donnat,  Teppo Ahuta – ahoo, Harri Sjöstrom, Kalle Kalima, Mikko-Ville Luolajan-Mikkola, Marco Colonna, Neil Swainson, Emilio Tamez, Marcos Miranda, Rémi Álvarez, FAS Trío, Hernán Ríos, Gustavo Lorenzatti, Tatsuya Nakatani, Satoshi Takeishi and Arjen Gorter among many others.

Mr. Tamez is involved in many projects like Wadada´s Leo Smith Golden Quartet/Double Quartet in Buffalo, NY with Wadada Leo Smith, Angélica Sánchez, John Lindberg and Pheeroan AkLaff plus Ubudis Quartet among others.

He released several cd´s  with musicians in the USA including, (Herb Robertson, Karl Berger, Steve Swell, Joe Fonda, Steve Rust, Ratzo B. Harris, Harvey Sorgen, Ben Gerstein, Jay Rosen, Steve Baczkowki, Jonathan Golove and John Bacon) and Europe (Ramon Lopez, Conny Bauer, Harri Sjöström and Olaf Rupp).

And both groups Tierra Mestiza and Mexicanos (see selected discography).

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Forthcoming is the second album dedicated to the music of Nicandro Tamez.

One of his most recent projects is performing new music for solo guitar (classical, electric and baritone) worldwide, some comissioned specially for him and many of the "traditional repertoire" like Toru Takemitsu, Giacinto Scelsi, Ralph Towner and Karl - Heinz Stockhausen.