Marcelo Ortiz Rocca is a young conductor but with a long career. Dedicated to the choral conduction since 1978, he has conducted numerous choirs and ensembles in the city of Buenos Aires and surrounding districts. It is necessary to highlight among these groups the Ensemble Vocal Buenos Aires, dedicated to the interpretation of Carlo Gesualdo and Claudio Monteverdi works.

He obtained prizes in national and international competitions: in 1991 and 1992 he achieved several first prizes in the International Competition Eisteddfod (Trelew, province of Chubut, Argentina) with the Vocal Group Santa Rita and the Coro de Cámara Adrogué, respectively; in November of 1996, also with the Coro de Cámara Adrogué, he won the first prize in the category "Mixed Choir" in the XIII International Choir Competition Franz Schubert (Vienna, Austria) and the special prize "Blaguss International" to the best interpretation in the competition (for unanimous decision of the jury); in December of 1996 he obtained also, with the same choir, the first prize in the second edition of the "Competitive Choral Meetings II" of Buenos Aires Province, Argentina. In 1998, with the Choir of the High School of Engineering of the National University of Buenos Aires (UBA), again in the International Competition Eisteddfod (Trelew, province of Chubut, Argentina) conquered the first prize in the "Main Category", Sung in Welsh, being the first time in 104 years this prize goes to a choir that is not from the Welsh Comunity.

In July of 2000, conducting the Coro de Cámara Adrogué and in representation of Argentina, participate in the 1st Choir Olympics held from 7 - 16 July 2000 in Linz, Austria, competing in four categories in which more than 350 choirs and vocal groups took part from 60 different countries: Sacred Music a Capella, Sacred Music, Mixed Choir and Folkloric Music. The Choir won medals in all four categories, Gold Medal for Sacred Music a Capella and Silver Medals in the other three.

In October of 2002, with the Choir of the High School of Engineering of the National University of Buenos Aires (UBA), participated in eleven categories of the International Competition Eisteddfod (Trelew, province of Chubut, Argentina) conquering seven 1st Prizes, three 2nd Prizes and one 3rd Prize.

He has acted as a jury member in different choral competitions of Argentina. As an educational he is at the front of the Choral Conduction Class of the National Conservatory of Music "Carlos López Buchardo" and he has mastered several courses of choral conduction inside the country.

He carried out his academic formation in the High School of Arts and Musical Sciences of the Catholic University Argentina (UCA), where he studied the Licentiate in Music. His proffesors were Roberto Caamaño and Gerardo Gandini in the specialty Musical Composition; Julio Fainguersch and Alberto Balzanelli in that of Choral Conduction. As an instrumentalist he has carried out studies of french horn with Domingo Garrefa and Armando Izzi. He studied Sing Technique with Angel Matiello and, and as interpreter of chamber music he was pupil of Norman Douglas Monk. In 1980 he was granted a scholarship by the Camping Bariloche Musical Foundation to carry out a course of improvement in this specialty.

He has conducted and formed numerous groups, that is: the Chamber Choir of the Lomas de Zamora University, during 1988; the Chamber Choir J. L. Peretz of Lanús, between 1980 and 1984; the Chamber Youth Choir of Belgrano, during 1979; the Omega Foundation Choir from 1992 up to 1995; the Vocal Ad Hominem Ensemble, from its creation in 1978 up to 1982; the Vocal Group Gaudeamus, from 1984 until August of 1985; the Choir of Santa Hilda College from 1987 until 1996; Cantilema Vocal Group, from its foundation in April of 1984, until its breakup in July of 1988; and "Grupo Vocal Argentino" (traditional male vocal group devoted from 1968 to divulge argentine folk music, in arrangements specially made for them) from 1994 until 2001.

At the moment he conducts: from 1982, the Coro de Cámara Adrogué; from 1983, the Ensemble Vocal Buenos Aires; from 1988, the Choral Group Santa Rita; from 1993, the Vocal Camerata of Belgrano; from 1994, the Choir of the High School of Engineering of the National University of Buenos Aires (UBA) and from 1996, the Choir of the Company´s Argentina University (UADE); from 1999 the Choir of the Citibank Argentina; since 2000 is Director of the Music Department of Saint Luke's College, conducting the Chamber Choir, Junior Choir y Senior Choir.