| Amaryllis Dieltiens, Maarten Engeltjes, Tilman Lichdi, Klaus Mertens, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Amaryllis Dieltiens, Maarten Engeltjes, Tilman Lichdi, Klaus Mertens, Dorothee Wohlgemuth, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Amaryllis Dieltiens, Maarten Engeltjes, Tilman Lichdi, Klaus Mertens, Gerlinde Sämann, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Amsterdam Baroque Choir, Bogna Bartosz, Jörg Dürmüller, Klaus Mertens, Johannette Zomer, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Amsterdam Baroque Choir, Bogna Bartosz, Jörg Dürmüller, Klaus Mertens, Miriam Meyer, Bettina Pahn, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Amsterdam Baroque Choir, James Gilchrist, Annette Markert, Klaus Mertens, Johannette Zomer, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Amsterdam Baroque Choir, Jörg Dürmüller, Patrick Van Goethem, Klaus Mertens, Miriam Meyer, Bettina Pahn, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Amsterdam Baroque Choir, Klaus Mertens, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Amsterdam Baroque Choir, Klaus Mertens, Bettina Pahn, Dorothee Wohlgemuth, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Amsterdam Baroque Choir, Klaus Mertens, Miriam Meyer, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Amsterdam Baroque Choir, Klaus Mertens, Miriam Meyer, Bettina Pahn, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Amsterdam Baroque Choir, Klaus Mertens, Sandrine Piau, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Amsterdam Baroque Choir, Miriam Feuersinger, Klaus Mertens, Dorothee Wohlgemuth, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Amsterdam Baroque Choir, Patrick Van Goethem, Andreas Karasiak, Klaus Mertens, Johannette Zomer, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Amsterdam Baroque Choir, Patrick Van Goethem, Klaus Mertens, Bettina Pahn, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Amsterdam Baroque Choir, Patrick Van Goethem, Klaus Mertens, Hugo Naessens, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Amsterdam Baroque Choir, Patrick Van Goethem, Klaus Mertens, Miriam Meyer, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Amsterdam Baroque Choir, Patrick Van Goethem, Klaus Mertens, Miriam Meyer, Bettina Pahn, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Amsterdam Baroque Choir, Ruth Holton, Klaus Mertens, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Andreas Karasiak, Klaus Mertens, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Andreas Post, Klaus Mertens, Telemann-Kammerorchester Michaelstein & Ludger Rémy (see uses) |
| Bernarda Fink, Hugo Distler Chor Wien, Klaus Mertens, Dorothea Röschmann, Helmut Wildhaber, Elisabeth Ullmann, Wiener Akademie, Martin Haselböck (see uses) |
| Bernarda Fink, Hugo Distler Chor Wien, Klaus Mertens, Dorothea Röschmann, Helmut Wildhaber, Martin Haselböck, Wiener Akademie (see uses) |
| Bogna Bartosz, James Gilchrist, Klaus Mertens, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Bogna Bartosz, Jörg Dürmüller, Klaus Mertens, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Bogna Bartosz, Jörg Dürmüller, Klaus Mertens, Miriam Meyer, Siri Karoline Thornhill, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Bogna Bartosz, Jörg Dürmüller, Klaus Mertens, Siri Karoline Thornhill, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Bogna Bartosz, Klaus Mertens, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Bogna Bartosz, Klaus Mertens, Sandrine Piau, Christoph Prégardien, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Carl Heinrich Graun; Mária Zádori, Márta Fers, Martin Klietmann, Klaus Mertens, Kammerchor Cantamus Halle, Capella Savaria, Pál Németh (see uses) |
| Charles Daniels, Klaus Mertens, I Barocchisti, Diego Fasolis (see uses) |
| Charles Daniels, Lynne Dawson, Bernhard Landauer, Klaus Mertens, I Barocchisti, Diego Fasolis (see uses) |
| Christoph Bernhard, Christian Herwich; Klaus Mertens, Hamburger Ratsmusik (see uses) |
| Christoph Burmester, Wilfried Jochens, Klaus Mertens, Das Kleine Konzert, Hermann Max (see uses) |
| Constanze Backes, Klaus Mertens, Telemann-Kammerorchester Michaelstein, Ludger Rémy (see uses) |
| Constanze Backes, Mechthild Georg, Andreas Post, Klaus Mertens, Kammerchor Michaelstein, Telemann-Kammerorchester Michaelstein & Ludger Rémy (see uses) |
| Die Kölner Akademie, Klaus Mertens, Michael Alexander Willens (see uses) |
| Dieterich Buxtehude; Ton Koopman, Amsterdam Baroque Orchestra, Amsterdam Baroque Choir, Siri Karoline Thornhill, Dorothee Wohlgemuth, Patrick Van Goethem, Jörg Dürmüller, Klaus Mertens (see uses) |
| Dieterich Buxtehude; Ton Koopman, Bettina Pahn, Dorothee Wohlgemuth, Klaus Mertens (see uses) |
| Donald Bentvelsen, Klaus Mertens, René Steur, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Dorothee Mields, Hanna Zumsande, Klaus Mertens, Hamburger Ratsmusik, Simone Eckert (see uses) |
| Elisabeth von Magnus, Klaus Mertens, Gerd Türk, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Evelin Novak, Klaus Mertens, Filharmonie Brno, Fabian Enders (see uses) |
| Florian Mehltretter, Klaus Mertens, Telemann-Kammerorchester Michaelstein, Ludger Rémy (see uses) |
| Franziska Gottwald, Klaus Mertens, Deborah York, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Georg Philipp Telemann, Dorothee Mields, Britta Schwarz, Andreas Post, Klaus Mertens, Reinhard Decker, MagdeburgerKammerchor, Telemann-Kammerorchester Michaelstein, Ludger Rémy (see uses) |
| Georg Philipp Telemann, Klaus Mertens, Collegium Vocale Siegen, Hannoversche Hofkapelle & Ulrich Stölzel (see uses) |
| Georg Philipp Telemann; Dorothee Mields, Britta Schwarz, Andreas Post, Klaus Mertens, Reinhard Decker, MagdeburgerKammerchor, Telemann-Kammerorchester Michaelstein, Ludger Rémy (see uses) |
| Georg Philipp Telemann; Klaus Mertens, Il Gardellino (see uses) |
| Georg Philipp Telemann; Mauch, Pieper, Poplutz, Mertens, Kölner Akademie, Michael Alexander Willens (see uses) |
| Georg Philipp Telemann; Mields, Zumsande, Mertens, Hamburger Ratsmusik, Simone Eckert (see uses) |
| George Frideric Handel; Joachim Carlos Martini, Junge Kantorei, Frankfurt Baroque Orchestra, Scholl, Schmidt, Popken, Schwarz, Markert, Schoch, Mertens (see uses) |
| Gottfried Heinrich Stölzel; Britta Schwarz, Henning Voss, Jan Kobow, Klaus Mertens, Weimarer Barock-Ensemble, Ludger Rémy (see uses) |
| Gottfried Heinrich Stölzel; Constanze Backes, Dorothee Mields, Henning Voss, Knut Schoch, Andreas Post, Klaus Mertens, Florian Mehltretter, Kammerchor Michaelstein, Telemann-Kammerorchester Michaelstein, Ludger Rémy (see uses) |
| Handel; Argenta, Schlick, Laurens, De Mey, Mertens, The Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Hugo-Distler-Chor, Elisabeth Lang, Klaus Mertens, Ildikó Raimondi, Helmut Wildhaber, Wiener Akademie, Martin Haselböck (see uses) |
| James Gilchrist, Klaus Mertens, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| James Gilchrist, Klaus Mertens, Sandrine Piau, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Jan Kobow, Klaus Mertens, Britta Schwarz, Henning Voss, Weimarer Barock-Ensemble, Ludger Rémy (see uses) |
| Jan Kobow, Klaus Mertens, Britta Schwarz, Weimarer Barock-Ensemble, Ludger Rémy (see uses) |
| Jan Kobow, Klaus Mertens, Weimarer Barock-Ensemble, Ludger Rémy (see uses) |
| Jan Kobow, Marion Eckstein, Klaus Mertens, Veronika Winter, Ludger Rémy, Telemannisches Collegium Michaelstein (see uses) |
| Johann Jakob Froberger; Bob van Asperen, Mieke van der Sluis, John Elwes, Klaus Mertens (see uses) |
| Johann Joseph Fux; Cordier, Minter, Chum, Mertens, Wiener Akademie, Martin Haselböck (see uses) |
| Johann Sebastian Bach, Amsterdam Baroque Orchestra, Ton Koopman, Guy de Mey, Peter Kooij, Barbara Schlick, Kai Wessel, Christoph Prégardien & Klaus Mertens (see uses) |
| Johann Sebastian Bach: Roberta Invernizzi,Lynne Dawson, Gloria Banditelli, Christoph Prégardien, Klaus Mertens, Coro della Radio Svizzera, Lugano, Sonatori de la Gioiosa Marca, Diego Fasolis (see uses) |
| Johann Sebastian Bach; Invernizzi, Dawson, Banditelli, Prégardien, Mertens, Coro della Radio Svizzera, Lugano, Sonatori de la Gioiosa Marca, Diego Fasolis (see uses) |
| Johann Sebastian Bach; Nancy Argenta, Klaus Mertens, Marcel Ponseele, Hidemi Suzuki, Pierre Hantaï, La Petite Bande, Sigiswald Kuijken (see uses) |
| Johann Sebastian Bach; Thomanerchor Leipzig, Gewandhausorchester Leipzig, Barbara Schlick, Christoph Prégardien, Klaus Mertens, Georg Christoph Biller (see uses) |
| Johann Sebastian Bach; Vokalensemble Frankfurt, Concerto Köln, Ralf Otto & Ruth Ziesak, Monica Groop, Christoph Prégardien & Klaus Mertens (see uses) |
| Johannes Brahms; Siri Karoline Thornhill, Klaus Mertens, Bremer Domchor, Kammer Sinfonie Bremen, Wolfgang Helbich (see uses) |
| Johannes Chum, David Cordier, Klaus Mertens, Drew Minter, Wiener Akademie, Martin Haselböck (see uses) |
| John Elwes, Andreas Post, Klaus Mertens, Melante Amsterdam (see uses) |
| John Elwes, Klaus Mertens, Mieke van der Sluis, Bob van Asperen, Wouter Möller, Thomas Pietsch, Lucy van Dael (see uses) |
| Jörg Dürmüller, Patrick Van Goethem, Klaus Mertens, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Jörg Dürmüller, Patrick Van Goethem, Klaus Mertens, Bettina Pahn, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Jörg Dürmüller, Patrick Van Goethem, Klaus Mertens, Siri Karoline Thornhill, Dorothee Wohlgemuth, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Kammerchor Cantamus Halle, Martin Klietmann, Klaus Mertens, Männerchor bouquet vocalis halle, Capella Savaria, Pál Németh (see uses) |
| Kammerchor der Marien-Kantorei Lemgo, Klaus Mertens, Rainer Johannes Homburg (see uses) |
| Klaus Mertens (see uses) |
| Klaus Mertens & Juliane Ruf (see uses) |
| Klaus Mertens - Ton Koopman - Jaap ter Linden (see uses) |
| Klaus Mertens, Accademia Daniel, Shalev Ad-El (see uses) |
| Klaus Mertens, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Klaus Mertens, Barbara Schlick, Gewandhausorchester Leipzig, Georg Christoph Biller (see uses) |
| Klaus Mertens, Bettina Pahn, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Klaus Mertens, Bettina Pahn, Dorothee Wohlgemuth, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Klaus Mertens, Bettina Pahn, Johannette Zomer, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Klaus Mertens, Bläserkollegium Leipzig, Telemann-Kammerorchester Michaelstein, Ludger Rémy (see uses) |
| Klaus Mertens, Capella Savaria, Pál Németh (see uses) |
| Klaus Mertens, Caroline Stam, Johannette Zomer, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Klaus Mertens, Christoph Prégardien, Sibylla Rubens, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Klaus Mertens, Christoph Prégardien, Sonatori de la Gioiosa Marca, Diego Fasolis (see uses) |
| Klaus Mertens, Christoph Prégardien, Ton Koopman, Jaap ter Linden (see uses) |
| Klaus Mertens, David Mings (see uses) |
| Klaus Mertens, De Nederlandse Bachvereniging, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Klaus Mertens, Die Kölner Akademie, Michael Alexander Willens (see uses) |
| Klaus Mertens, Edgar Krapp (see uses) |
| Klaus Mertens, Gerlinde Sämann, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Klaus Mertens, Gerlinde Sämann, Dorothee Wohlgemuth, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Klaus Mertens, Gewandhausorchester Leipzig, Georg Christoph Biller (see uses) |
| Klaus Mertens, Hamburger Ratsmusik, Simone Eckert (see uses) |
| Klaus Mertens, I Barocchisti, Diego Fasolis (see uses) |
| Klaus Mertens, Il Concertino Köln (see uses) |
| Klaus Mertens, Ingrid Schmithüsen, Il Concertino Köln (see uses) |
| Klaus Mertens, Johannette Zomer, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Klaus Mertens, Kay Johannsen (see uses) |
| Klaus Mertens, Knut Schoch, Telemann-Kammerorchester Michaelstein, Ludger Rémy (see uses) |
| Klaus Mertens, Maya Amrein, Rudolf Lutz (see uses) |
| Klaus Mertens, Minguet Quartett (see uses) |
| Klaus Mertens, Miriam Meyer, Bettina Pahn, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Klaus Mertens, Mutare Ensemble, Gerhard Müller-Hornbach (see uses) |
| Klaus Mertens, Radio Kamerorkest, Ton Koopman (see uses) |
| Klaus Mertens, Sandrine Piau, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Klaus Mertens, Sibylla Rubens, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Klaus Mertens, Sibylla Rubens, Maya Amrein, Rudolf Lutz (see uses) |
| Klaus Mertens, Siri Karoline Thornhill, Dorothee Wohlgemuth, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Klaus Mertens, Sonatori de la Gioiosa Marca, Diego Fasolis (see uses) |
| Klaus Mertens, Telemann-Kammerorchester Michaelstein & Ludger Rémy (see uses) |
| Klaus Mertens, Telemann-Kammerorchester Michaelstein, Ludger Rémy (see uses) |
| Klaus Mertens, Tini Mathot (see uses) |
| Klaus Mertens, Tokyo Metropolitan Symphony Orchestra, Gary Bertini (see uses) |
| Klaus Mertens, Ton Koopman, Jaap ter Linden (see uses) |
| Klaus Mertens, Tölzer Knabenchor, La Petite Bande, Gustav Leonhardt (see uses) |
| Klaus Mertens, Weimarer Barock-Ensemble, Ludger Rémy (see uses) |
| Klaus Mertens, Yvonne Naef, Christoph Prégardien, Barbara Schlick, Gewandhausorchester Leipzig, Georg Christoph Biller (see uses) |
| Klaus Mertens, baritone • Norman Shetler, piano (see uses) |
| Lisa Larsson, Elisabeth von Magnus, Klaus Mertens, Christoph Prégardien, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Lisa Larsson, Elisabeth von Magnus, Klaus Mertens, Gerd Türk, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Lisa Larsson, Klaus Mertens, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Lorenz Christoph Mizler; Klaus Mertens, Sibylla Rubens, Rudolf Lutz, Maya Amrein (see uses) |
| Ludwig van Beethoven; Evelin Novak, Klaus Mertens, Vocalconsort Berlin, Sächsische Kammerchor, Filharmonie Brno, Fabian Enders (see uses) |
| Lynne Dawson, Klaus Mertens, I Barocchisti, Diego Fasolis (see uses) |
| Maarten Engeltjes, Klaus Mertens, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Maarten Engeltjes, Tilman Lichdi, Klaus Mertens, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Maarten Engeltjes, Tilman Lichdi, Klaus Mertens, Gerlinde Sämann, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Maarten Engeltjes, Tilman Lichdi, Klaus Mertens, Gerlinde Sämann, Dorothee Wohlgemuth, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Mauro Borgioni, Die Kölner Akademie, Klaus Mertens, Michael Alexander Willens (see uses) |
| Max Ciolek, Klaus Mertens, Sandrine Piau, Radio Kamerorkest, Ton Koopman (see uses) |
| Mechthild Georg, Klaus Mertens, Telemann-Kammerorchester Michaelstein & Ludger Rémy (see uses) |
| Mozart; Schlick, Frimmer, Prégardien, Mertens, Kölner Kammerchor, Collegium Cartusianum, Peter Neumann (see uses) |
| Márta Fers, Kammerchor Cantamus Halle, Martin Klietmann, Klaus Mertens, Mária Zádori, Capella Savaria, Pál Németh (see uses) |
| Nancy Argenta, Klaus Mertens, Pierre Hantaï, Sigiswald Kuijken, Marcel Ponseele, Hidemi Suzuki, La Petite Bande (see uses) |
| Othmar Schoeck, Ruth Zechlin; Klaus Mertens, Minguet Quartett (see uses) |
| Othmar Schoeck; Klaus Mertens, Mutare Ensemble, Gerhard Müller-Hornbach (see uses) |
| Patrick Van Goethem, Andreas Karasiak, Klaus Mertens, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Patrick Van Goethem, Andreas Karasiak, Klaus Mertens, Bettina Pahn, Johannette Zomer, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Patrick Van Goethem, Andreas Karasiak, Klaus Mertens, Johannette Zomer, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Patrick Van Goethem, Klaus Mertens, Bettina Pahn, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Patrick Van Goethem, Klaus Mertens, Johannette Zomer, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Paul Agnew, Amsterdam Baroque Choir, Bogna Bartosz, Klaus Mertens, Cornelia Samuelis, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Paul Agnew, Amsterdam Baroque Choir, Franziska Gottwald, Klaus Mertens, Deborah York, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Paul Agnew, Amsterdam Baroque Choir, Klaus Mertens, Caroline Stam, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Paul Agnew, Clytus Gottwald, Klaus Mertens, Deborah York, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Paul Agnew, Klaus Mertens, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Paul Agnew, Max Ciolek, Klaus Mertens, Sandrine Piau, Radio Kamerorkest, Ton Koopman (see uses) |
| Robin Blaze, Andreas Karasiak, Klaus Mertens, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Sebastian Hübner, Wilfried Jochens, Klaus Mertens, Das Kleine Konzert, Hermann Max (see uses) |
| Telemann; Klaus Mertens, Ingrid Schmithüsen, Il Concertino Köln (see uses) |
| Telemann; Martin Klietmann, Klaus Mertens, Kammerchor Cantamus Halle, Männerchor bouquet vocalis halle, Capella Savaria, Pál Németh (see uses) |
| Tilman Lichdi, Klaus Mertens, Amsterdam Baroque Orchestra, Ton Koopman (see uses) |
| Wilfried Jochens, Klaus Mertens, Bläserkollegium Leipzig, Telemann-Kammerorchester Michaelstein, Ludger Rémy (see uses) |
| Wilfried Jochens, Klaus Mertens, Das Kleine Konzert, Hermann Max (see uses) |
| Wilfried Jochens, Klaus Mertens, Mona Spägele, Henning Voss, Bläserkollegium Leipzig, Telemann-Kammerorchester Michaelstein, Ludger Rémy (see uses) |
