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| Gunnar IDENSTAM |
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| Composer, concert artist |
| Ludger LOHMANN |
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| Organist of Sankt-Eberhard Cathedral and professor of organ at Musikhochschule in Stuttgart, concert artist, musicologist |
| Thierry PALLESCO |
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| Composer, organist |
| Bernard WINSEMIUS |
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| Organist of the Nieuwe Kerk in Amsterdam, carilloneur of Haarlem, professor of organ at Rotterdam Conservatory, professor of organ and carillon at Utrecht Conservatory, concert artist |
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| Jehan
ALAIN (1911 - 1940) |
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| Website of the Association "Jehan Alain" |
| Gerard
BUNK (1888 - 1958) |
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| Website of Gerard-Bunk-Gesellschaft, devoted to the Dutch composer, Kantor and organist at St. Reinoldi church in Dortmund, pianist |
| William
LLOYD WEBBER (1914 - 1982) |
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| Website devoted to the English composer, too long overshadowed by the fame of his son Andrew |
| Max
REGER (1873 - 1916) |
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| Website of Max-Reger-Institut in Karlsruhe |
| Mikael TARIVERDIEV (1931 - 1996) |
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| Website devoted to the Soviet composer |
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| Internationaal Orgelfestival Haarlem |
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| This website is also devoted to the renowned International Summer Academy for Organists |
| Orgelfestival Holland |
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| Website dedicated to the Alkmaar Organ Festival, the International "Schnitger" Competition and the Alkmaar International Academy |
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| Aristide CAVAILLÉ-COLL (1811 - 1899) |
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| Website of the Association Aristide Cavaillé-Coll, devoted to the great French organ builder |
| Arp SCHNITGER (1648 - 1719) |
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| Website devoted to the great German organ builder |
| Gottfried SILBERMANN (1683 - 1753) |
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| Website devoted to the great Saxon organ builder, with many interesting links |
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| FLENTROP Orgelbouw |
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| The famous Dutch enterprise, based in Zaandam |
| Johannes KLAIS Orgelbau GmbH & Co. KG |
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| The famous German enterprise, based in Bonn |
| MARCUSSEN & SØN Orgelbyggeri A/S |
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| The famous Danish enterprise, based in Åbenrå |
| METZLER Orgelbau AG |
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| The famous Swiss enterprise, based in Dietikon (Zürich) |
| RIEGER Orgelbau GmbH |
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| The famous Austrian enterprise, based in Schwarzach (Vorarlberg) |
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| Organ Historical Society Online Catalog |
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| Online purchase of sheet music, CDs, DVDs and books (dealer based in Richmond, VA, U.S.A.) |
| Bodensee Musikversand |
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| Online purchase of sheet music (dealer based in Radolfzell am Bodensee, Baden-Württemberg, Germany) |
| di-arezzo |
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| Online purchase of sheet music (dealer based in Paris) |
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| Musica et Memoria |
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