Leontovich

Luke Bond (organ) St George's Chapel Choir Windsor, James Vivian

Alexandra Kidgell, Edward McMullan, Mark Dobell, Robert Macdonald, Ben Davies, Rob Macdonald, Katy Hill, Tim Jones, Charlotte Mobbs, George Pooley, The Sixteen, Harry Christophers

Felix Klieser (horn)

The Choral Scholars of University College Dublin, Irish Chamber Orchestra, Desmond Earley

St John's Episcopal Cathedral Choir, Denver, Donald Pearson

Vox Holloway Chamber Choir

Philharmonischer Kinderchor Dresden

Placido Domingo

Xavier de Maistre (harp)

Shadow Ridge Middle School Honor Winds, Ross Patterson, Adrienne Schuster

Handel and Haydn Society, Harry Christophers

Ensemble Cherubim, Marika Kuzma

Concerto Malaga Los Romeros, Massimo Paris

Vienna Boys Choir

Jorge A. Pena (viola) Douglas Anderson School of the Arts Chamber Orchestra, Georgia Ekonomou, Patrick C. Smith, Tom Haller, Carol Griffin, Brian Griffin

Westminster Concert Bell Choir, Kathleen Ebling Shaw

Angèle Dubeau & La Pietà, Valerie Milot, Antoine Bareil, Duo Campion-Vachon, Les Petits Chanteurs du Mont-Royal, Alexander Sevastian, Orchestre Symphonique De Québec, Lyne Fortin Le Choeur les Rhapsodes, Pascal Verrot, Gilbert Patenaude, André Chiasson

Mindy Ball (harp), Jason Alexander (tenor) Pacific Chorale, John Alexander

Ruben Gutierrez (piano), Manny Flores (bass guitar), Henry Martinez (drums) Paso Brass, El

Christine Brewer (soprano) Scott School and Local Community, United States Air Force Band of Mid-America, members

Brunnsbo Music Class Girls Choir, Gothenburg Youth Choir, Anne Johansson

Dan Duggan (dulcimer), Henry Jankiewicz (fiddle), Dan Duggan (guitar)

Kristina Arakelyan

Kristina Marinova, Jordan VanHemert, Lisa Sung, Rodney Whitaker (double bass), Jeff Shoup, Orsolya Sapszon, Elizabeth Start, Alan Rinehart, Dr. Joseph Galema, Steven Kindermann, Tim Allums, Gary Stephens, John Gohl, Gary Poffenbarger, Michael Woods, Janáček Philharmonic Orchestra, Hope College Orchestra, Budapest Scoring Orchestra, Stanislav Vavřínek, Christopher Fashun, Péter Illényi

Stephan Moccio (piano)

The Girl Choristers of Merton College, Oxford, Simon Hogan, Catrin Meek, Benjamin Nicholas

Canadian Brass

Jeremy Blandford (organ), Gerhard Bunk (organ), Barbara Hendricks (soprano), Sumi Jo (soprano), Barbara Ochs (contralto), Ian Hare (organ), Thibaut Garcia (guitar), Sérgio Chiavazzoli (guitar, mandolin, ukulele), Alison Ramos (percussion), Gláucio Ayala (drums), Marcelo Linhares (bass), Pretinho (percussion), Thomas Hampson (baritone), Benjamin Bayl (organ), Daniel Montes (guitar), Fabrico Nogueira (guitar), Gabriel Azevedo (percussion), João Fernando (mandolin), Peter Stevens (organ), Daniel Hyde (organ), Natalie Dessay (soprano), Rolando Villazón (tenor), Gottfried Bach (piano), Libera (vocal ensemble), Herman van Veen (tenor), Adrian Kelly (tenor), Edward Moore (boy soprano), Chanticleer (vocal ensemble), Anneliese Rothenberger (soprano), Marie-Claire Alain (organ), Clare College Singers, Clare College Orchestra, Berliner Philharmoniker, Choir of King's College Cambridge, Bielefelder Kinderchor, Waldo de los Ríos Orchestra, Stockholm Chamber Orchestra, Concentus musicus Wien, Cappella Coloniensis, Wiener Sängerknaben, London Brass, Adolf Fredriks Musikklasser, Eric Ericson Chamber Choir, Academy of St Martin in the Fields, Dresdner Kreuzchor, Winchester Cathedral Choir, Saint Paul Chamber Orchestra, Amsterdam Baroque Orchestra, Der Kölner Kinderchor, Symphonieorchester Radio Luxemburg, Choir of New College Oxford, Le Concert d'Astrée, Orchestre Symphonique Bel Arte, Children Choir from Adolf Fredriks Musikklasser, Collegium Vocale Gent, Il Giardino Armonico, John Rutter, Sir Simon Rattle, Sir David Willcocks, Waldo de los Ríos, Philip Ledger, Eric Ericson, Nikolaus Harnoncourt, Michael Schneider, Hans Gillesberger, Sir Neville Marriner, Rudolf Mauersberger, David Hill, Stephen Cleobury, Hugh Wolff, Robert Prizeman, Ton Koopman, Leopold Hager, Edward Higginbottom, Emmanuelle Haïm, Philippe Rombi, Philippe Herreweghe, Giovanni Antonini

West Edge String Quartet

John Ferguson, Tore Aaen Aune, Brigitte Volan, Sonja DuToit Tengblad, Randi Stene, Silje Hveem, Torodd Wigum, Paul Melcher, Per Fridtjov Bonsaksen, Nicholas Mattsson, Sammi Block, St. Olaf Choir, Nidarosdomens Jentekor, Anton Armstrong, Anita Brevik, Vivianne Sydnes

Calmus Ensemble

The Ohio State University Marching Band, Dr. Jon R. Woods

Turtle Creek Chorale, Dr. Timothy Seelig

Heather MacPhail (organ), Heather MacPhail (piano) Cincinnati May Festival Chorus, Robert Porco

Choeur Les Rhapsodes, Les Petits Chanteurs Du Mont-Royal, Lyne Fortin, Orchestre Symphonique de Quebec, Angele Dubeau, LuceVachon, Strada, La Bande Magnetik

Ensemble vocal Sankofa

United States Army Field Band, United States Army Field Band Soldiers' Chorus

Indiana University of Pennsylvania Percussion Ensemble, Intensity, Indiana University of Pennsylvania Steel Band, Michael Kingan

Calmus Ensemble, Kinder- und Jugendchor, Lautten Compagney, Wolfgang Katschner

Marius Noss Gundersen

The Airlettes (performer)

Angèle Dubeau, Alain Lefèvre, Antoine Bareil, Valérie Milot, The Bach Choir of Bethlehem, Petits chanteurs du Mont-Royal, Alexander Sevastian, Duo Campion-Vachon, Choeur Les Rhapsodes, Olivier Fortin, Ensemble Masques, Luc Beauséjour, Paul Merkelo, Daniel Taylor, Trio Lorraine Desmarais, Lorraine Desmarais, Ensemble Strada, Geneviève Soly, Jean-Pierre Zanella La Pietà, Quatuor Menasen, Les Idées Heureuses, Gilbert Patenaude

Elliott Jack Sansom (piano), Sophie Hutchings (piano), Gabríel Ólafs (piano), Luke Howard (piano), Daniel Farrugia (drumkit), Lara Somogyi (harp, electronicpercussion), Peter Gregson (piano, programmer), Олена Ustelentseva (violin), Erland Cooper (piano), Benjamin Gustafsson (piano, strings, synthpad), Ola Gjeilo (piano), Plínio Fernandes (guitar), Dustin O'Halloran (piano), Bryan Senti (violin), Víkingur Ólafsson (piano), Lambert (piano), Stephan Moccio (piano), Gaspar Santos (violin), Tiago Moreira (violin), Gabriela Peixoto (violin), Afonso Amaral (violin), Natália Ribeiro (violin), Margarida Queirós (violin), Francisca Seixas (violin), Rui Moreira (viola), Ana Alves (viola), Filipa Bandeira (viola), Nuno Ferreira (cello), Ana Sofia Leão (cello), Filipa André (cello), Cláudia Rodet (doublebass), Joana Lopes (doublebass), Rui Massena (piano, rhodes, percussion, recordingarranger, programmer), Arda Recorders (studio), Chad Lawson (piano, rhythmarranger), Ben Cummingham (doublebass), Andrew Storey (violin), Ugne Tiskute (viola), Richard Harwood (cello), Abbie Fenna (viola), Tom Gould (violin), Lang Lang (piano)

Jeremy Blandford (organ), Gerhard Bunk (organ), Barbara Hendricks (soprano), Sumi Jo (soprano), Barbara Ochs (contralto), Ian Hare (organ), Thibaut Garcia (guitar), Natal de Cavaquinho, Sérgio Chiavazzoli (guitar, mandolin, ukulele), Alison Ramos (percussion), Gláucio Ayala (drums), Marcelo Linhares (bass), Pretinho (percussion), Thomas Hampson (baritone), Libera (vocal ensemble), Benjamin Bayl (organ), Natal de Bandolim, Daniel Montes (guitar), Fabrico Nogueira (guitar), Gabriel Azevedo (percussion), João Fernando (mandolin), Peter Stevens (organ), Daniel Hyde (organ), Natalie Dessay (soprano), Rolando Villazón (tenor), Gottfried Bach (piano), Herman van Veen (tenor), Adrian Kelly (tenor), Edward Moore (boy soprano), Chanticleer (vocal ensemble), Anneliese Rothenberger (soprano), Marie-Claire Alain (organ), Clare College Singers, Clare College Orchestra, Berliner Philharmoniker, Choir of King's College Cambridge, Bielefelder Kinderchor, Waldo de los Ríos Orchestra, Stockholm Chamber Orchestra, Concentus musicus Wien, Cappella Coloniensis, Wiener Sängerknaben, London Brass, Adolf Fredriks Musikklasser, Eric Ericson Chamber Choir, Academy of St Martin in the Fields, Dresdner Kreuzchor, Winchester Cathedral Choir, Saint Paul Chamber Orchestra, Amsterdam Baroque Orchestra, Der Kölner Kinderchor, Symphonieorchester Radio Luxemburg, Choir of New College Oxford, Le Concert d'Astrée, Orchestre Symphonique Bel Arte, Children Choir from Adolf Fredriks Musikklasser, Collegium Vocale Gent, Il Giardino Armonico, John Rutter, Sir Simon Rattle, Sir David Willcocks, Waldo de los Ríos, Philip Ledger, Eric Ericson, Nikolaus Harnoncourt, Michael Schneider, Hans Gillesberger, Sir Neville Marriner, Rudolf Mauersberger, David Hill, Stephen Cleobury, Hugh Wolff, Robert Prizeman, Ton Koopman, Leopold Hager, Edward Higginbottom, Emmanuelle Haïm, Philippe Rombi, Philippe Herreweghe, Giovanni Antonini

Libera

La Petite Bande de Montreal, Martin Dagenais

Ensemble of Violinists of the Bolshoi Theatre, USSR Ministry of Culture State Chamber Choir, National Choir of Ukraine "Dumka", Bolshoi Theatre Orchestra, USSR State Symphony Orchestra, Gennady Rozhdestvensky, Evgeny Svetlanov, Boris Khaikin

Estonian Philharmonic Chamber Choir, Paul Hillier

Hollywood Bowl Symphony Orchestra, Carmen Dragon

The Mormon Tabernacle Choir, Alexander Schreiner (organ) Richard P. Condie

UCLA Madrigal Singers, The, Donn Weiss

Michał Dąbrowski, Marek Stefanski, Ludger Lohmann, The Hoor Choir, Tomasz Kotwica

Libera

Robert August (organ), Ellie Lin (piano), Max Grim (soprano), Caleb Fritz (bass), Buddy Bray (piano), Andy Stellar (djembe) Texas Boys Choir, Dallas Symphony Brass and Percussion, Texas Camerata, Dallas Wind Symphony, S. Bryan Priddy

Rufus Beck (reader) Neuer Knabenchor Hamburg, Jens Bauditz

Vela Cantamus, Andreas Lamken (chorusmaster), Hans-Dieter Karras

Daniel Beckwith (organ), Peter Gillis (tenor) Westminster Choir, Philadelphia Concerto Soloists, members, Joseph Flummerfelt

82nd Airborne Division Chorus

Raphaela Gromes (violoncello), Julian Riem (piano), Eldbjørg Hemsing (violin), Olivia Belli (piano), Signum Saxophone Quartet, City of Prague Philharmonic Orchestra, Goldmund Quartet, Gordon Hamilton

Jeroen van Veen (performer, piano)