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| 1950 | International festival of BIARRITZ (France) |
| 1951 | BARCELONA - NANTES (France) |
| 1952 | Performance of the Basque Opera "AMAIA" |
| 1953 | Performance of the Basque Opera "TXANTON PIPERRI" |
| 1954 | Performance of the Basque Opera "LA DAMA DE ANBOTO" |
| 1965 | Tour throughout BRETAGNE (France) |
| 1964 | ZARAGOZA (Spain) |
| 1967 | V International Festival of the Pyrenees in JACA (Spain) |
| 1969 | I International contest of Choirs in TOLOSA (Spain) |
| 1971 | LARUNS (France) |
| 1973 | XI International Festival of the Pyrenees in JACA (Spain) |
| 1974 | POITIERS (France) |
| 1974 | International Festival of CHARLEROI (Belgium) |
| 1974 | 20th International Festival in SIDMOUTH (England) |
| 1975 | VII International contest of Choirs in TOLOSA (Spain) |
| 1975 | International day of Choral Singling BARCELONA (Spain) |
| 1976 | International Festival in CLOPENBOURG (Germany) |
| 1976 | LEUCHTENBURS (Germany) |
| 1976 | BOOKHOIZBERS (Germany) |
| 1976 | BRUSELAS (Belgium) |
| 1976 | BAD ZWISCHENAHN (Germany) |
| 1976 | I International Festival in SAN SEBASTIÁN (Spain) |
| 1976 | International day of Choral Singling BARCELONA (Spain) |
| 1977 | International Festival of STUTTGART (Germany) |
| 1977 | AMSTERDAN (Holland) |
| 1977 | International day of Choral Singling BARCELONA (Spain) |
| 1977 | IX International contest of Choirs in TOLOSA (Spain) |
| 1978 | XIV International Festival in BURGAS (Bulgaria) |
| 1978 | MILAN (Italy) |
| 1979 | IV International Festival in SAN SEBASTIÁN (Spain) |
| 1979 | International day of Choral Singling BARCELONA (Spain) |
| 1980 | International Festival in IZEGEM (Belgium) |
| 1980 | "Iberian Music" Festival in BERLÍN (Germany) |
| 1981 | Aragonese Song Festival in EJEA DE LOS CABALLEROS (Spain) |
| 1982 | Aragonese Song Festival in EJEA DE LOS CABALLEROS (Spain) |
| 1982 | International day of Choral Singling BARCELONA (Spain) |
| 1982 | XXIX International Festival in CORK (Ireland) |
| 1982 | VII International Festival in CAMPORGIANO (Italy) |
| 1982 | III Folklore International Festival of NORDENHAN (Germany) |
| 1982 | Perform of the OLESKARI ZAHARRA Opera with the Euskadi Orchestra and the Andra Mari Choir. |
| 1983 | Aragonese Song Festival in EJEA DE LOS CABALLEROS (Spain) |
| 1984 | II International Festival of CANTONIGROS (Catalunya-Spain) |
| 1985 | X International Festival of CAMPORGIANO (Italy) As "Guest of Honour" out of Program |
| 1985 | KORTRIJK (Belgium) |
| 1985 | MIDDELKERKE (Belgium) |
| 1985 | Selected by Susana Robledo, María de Ávila, Roberto Carpio and Maurice Bejart, as Basque Folklore representative ESKOLA soes to EUROPALIA 85, giwing during September more than is performances in BRUSELAS, LIEJA and AMBERES (Belgium) |
| 1986 | VI International Festival of HALSBEK (Germany) |
| 1986 | RETIE (Belgium) |
| 1986 | TONGERLO (Belgium) |
| 1986 | WESTERSTERDE (Germany) |
| 1986 | BAD ZWISCHENAHN (Germany) |
| 1986 | BAD WALDLIESBORN (Germany) |
| 1986 | HARSEWINKEL (Germany) |
| 1986 | Performance of the AMAIA Opera with the Symphonic Orchestra of Bilbao and the A.B.A.O. Choir. |
| 1986 | XIX Mediterranean International Festival in MURCIA (Spain) |
| 1987 | VIII National Festival of "LA SEGUIDILLA" in CIUDAD REAL (Spain) |
| 1988 | XI Ballet International Festival of LA HABANA (Cuba) |
| 1988 | TRIESTE (Italy) |
| 1989 | I International Festival of SAN SEBASTIÁN (Spain) |
| 1989 | Children's Folklore International Festival of IZEGEM (Belgium) |
| 1990 | II International Festival of SAN SEBASTIÁN (Spain) |
| 1990 | BAD WALDLIESBORN (Germany) |
| 1990 | BAD SASSENDORF (Alemania) |
| 1990 | MARIENFELD (Alemania) |
| 1990 | XII Festival Internacional de MÜNSTER (Alemania) |
| 1991 | International Festival of LLANGOLLEN (Wales) |
| 1991 | Annual secondary school Festival in MARUGAME (Japan) |
| 1992 | Choral meetings in PLASENCIA-CACERES (Spain) |
| 1992 | French Tours presentation Festival in SAN SEBASTIÁN (Spain) |
| 1992 | ARRAIGO show in the Zarzuela Theatre of MADRID (Spain) |
| 1993 | International Festival of ZAKOPANE (Poland) |
| 1993 | ARRAIGO show in the Zarzuela Theatre of MADRID (Spain) |
| 1994 | Coral exchange with the Martinene Orfeon BARCELONA (Spain) |
| 1994 | VIII Sestao's Folklore Exposition SESTAO-BIZKAIA (Spain) |
| 1994 | Children's Festival of NAVI SAÇZ (Poland) |
| 1995 | V Cultural and Folklore expositions of CARREÑO (Candás) |
| 1995 | International Festival of GIJON (Spain) |
| 1995 | International Festival of Choral singing of CATALUNYA CENTRE (Spain) |
| 1996 | International Festival children's of Folklore of KANBO (Francia) |
| 1996 | Festival of Choral singing of AUTOL (Rioja-Spain) |
| 1996 | International Festival of Folklore of CLUJ NAPOCA (Rumania) |
| 1996 | XVII Festival of "LA SEGUIDILLA" (Ciudad Real-Spain) |
| 1996 | ARRAIGO show in Badajoz y Cáceres (Sàin) |
| 1997 | XI show of Folklore in SESTAO (Spain) |
| 1997 | International Festival of Folklore of WERELDFOLKLORE in IZEGEM (Flandes) |
| 1997 | International Festival of Folklore of HALSBEK-WESTERSTEDE (Alemania) |
| 1998 | International Festival children's of Folklore in IZEGEM (Flandes) |
| 1998 | Festival of Choral singing of AUTOL (Rioja-Spain) |
| 1999 | International Festival of Folklore of ZAKOPANE (Poland) |
| 1999 | Musicians at International Festival of ZAKOPANE (poland) |
| 2000 | Cultures of the World festival (Gannat-France) |