Acadiana Symphony Orchestra
Alabama Symphony Orchestra
Algonquin Arts Theatre
Altoona Symphony Orchestra
Amarillo Opera
American Symphony Orchestra
Anchorage Symphony Orchestra
Angels Vocal Art
Annapolis Opera
Argento New Music Project
Arizona State Univ.
ArtsNaples World Festival
Astoria Festival of Music
Atlanta Opera
Atlanta Symphony Orchestra
Atlantic Coast Opera Festival
Augusta Opera
Baldwin Wallace Univ.
Baltimore Concert Opera
Baltimore Opera
Baltimore Symphony Orchestra
Bay View Music Festival
Beth Morrison Projects
Boston Midsummer Opera
Boston Symphony Orchestra
Brevard Music Center
Briercrest College and Seminary
Buffalo Philharmonic Orchestra
Cactus Chamber Orchestra
California State Univ. Fresno
California State Univ. Fullerton
California State Univ. Northridge
Cambridge Symphony Orchestra
Cape Town Opera
Capitol Opera Harrisburg
Catholic Univ. of America, The
Casa Italiana Opera Company
Central Florida Lyric Opera
Central Washington Univ.
Charleston Opera Theater
Chamber Music on the Fox
Châteauville Foundation
Chattanooga Symphony and Opera
Chicago Opera Theater
Chorus Niagara
Chorus Pro Musica of Boston
Cleveland Opera Theater
College of Charleston
Colorado Music Festival
Colorado Springs Philharmonic
Commonwealth Opera
Connecticut Grand Opera and Orchestra
Curtis Institute of Music
da Corneto Opera
Delaware Valley Opera Company
DePauw Orchestra and Opera
Eastern Opera of New Jersey
Emerald City Opera
Empire Opera
Encompass Theatre
Finger Lakes Opera
Florida Grand Opera
Florida International Univ.
Fort Worth Opera
Fresno Opera and Orchestra Summer Academy
Gardner-Webb Univ.
Gauteng Opera
Georgia Southern Univ.
Gilbert and Sullivan Society of Austin
Golden Gate Opera
Gulf Coast Symphony
Gulfshore Opera
Harvard College Opera Society
Harvard Radcliffe Orchestra
Harvard Univ.
Harrisburg Opera
Hawai’i Opera Theatre
Hawaii Performing Arts Festival
Houston Symphony
Hudson Valley Int’l Festival of the Voice
Huntsville Symphony Orchestra
Indianapolis Symphony Orchestra
Inland Northwest Opera
Intermountain Opera Bozeman
Island Opera Theatre
La Jolla Symphony and Chorus
Juneau Symphony
Kent State Univ.
Kentucky Opera
Lakes Area Music Festival
LFB Productions
Little Opera Company of New Jersey
Livermore Valley Opera
Longy School of Music
Long Beach Opera
Long Island Opera
Los Angeles Opera
Loveland Opera Theater
Loyola Univ. New Orleans
Lubbock Symphony Orchestra
Luray Opera Theatre
Madison Lyric Stage
Madison Opera
Manhattan Opera Studio
Maryland Concert Opera
Maryland Lyric Opera
Mendocino Music Festival
Mercyhurst Univ.
Miami Dade College
Miami Lyric Opera
Miami Summer Music Festival
Michigan Technological Univ.
Mid-Ohio Opera
Midland Symphony Orchestra
Midwest Institute of Opera
Mississauga Symphony Orchestra
Mississippi Symphony Orchestra
Mobile Opera
Monterey Symphony
Morgan Univ.
Muddy River Opera Company
The Muses Project
Music Academy of the West
New Jersey Assoc. of Verismo Opera
New Jersey City Univ.
New Jersey State Opera
New Orleans Opera
New Rochelle Opera
Nicholls State University
NYU Opera
North Carolina Opera
Northeastern Univ.
Northwest Florida State College
Northwestern Univ.
Oberlin College and Conservatory
Ohio Univ.
Oklahoma City Philharmonic
Oklahoma City Univ.
On Site Opera
Opera Birmingham
Opera Delaware
Opera East Texas
Opera Fresca
Opera Grand Rapids
Opera Huntsville
Opera Idaho
Opera in the Ozarks
Opera Lancaster
Opera Naples
Opera North
Opera Omaha
Opera Orlando
Opera Philadelphia
Opera Quad Cities
Opera Roanoke
Opera San Antonio
Opera San José
Opera San Luis Obispo
Opera Santa Barbara
Opera Saratoga
Opera Susquehanna
Opera Tampa
Opera Theatre of the Rockies
Opera West
Opera York
Pacific Symphony
Pacific Univ.
Pasadena Opera
Peabody Conservatory
The Philadelphia Orchestra
Phoenix Metropolitan Opera
Piccola Opera
Piedmont Opera
Pine Mountain Music Festival
Pineda Lyric Opera
Pittsburgh Symphony
Portland State Univ.
Princeton Festival
Queens Summer Vocal Institute
Rimrock Opera
Rochester Lyric Opera
Rochester Philharmonic Orchestra
Rutgers Univ.
Sacramento Opera
Salt Marsh Opera
San Antonio Opera
San Antonio Symphony
San Bernadino Symphony
San Francisco Conservatory of Music
San Francisco Girls Chorus
SFO Merola Opera Program
San José State Univ.
Saskatoon Opera
Savannah Choral Society
Savannah Philharmonic
Scottish Opera
Seagle Music Colony
Seattle Symphony
Skylark Opera
South Dakota Symphony
South Texas Lyric Opera
Southern Methodist Univ.
Southern Utah Univ.
Spokane Opera
Spoleto Festival USA
Springfield Regional Opera
Saint Paul Chamber Orchestra
Smith College
State Repertory Opera
Sugar Creek Symphony and Song
SUNY Fredonia
Symphony Orchestra of India
Symphonicity
Tacoma Opera
Taconic Opera
Temple University
Texas Tech Univ.
Toledo Opera
Toronto City Opera
Tri-Cities Opera
Tshwane Univ. of Technology
UCLA Opera
United States Army Band
Univ. of Alabama
Univ. of Alabama at Birmingham
Univ. of Arizona
Univ. of California Santa Barbara
Univ. of Colorado, Boulder
Univ. of Delaware
Univ. of Georgia
Univ. of Illinois at Urbana-Champaign
Univ. of Louisville
Univ. of Memphis
Univ. of Miami
Univ. of North Carolina at Charlotte
Univ. of Northern Colorado
Univ. of Northern Iowa
Univ. of South Carolina
Univ. of Tennessee
Univ. of Texas at Austin
Univ. of Texas at San Antonio
Univ. of Texas Rio Grande Valley
Univ. of Washington
Univ. of Wisconsin – Eau Claire
Univ. of Wisconsin – Stevens Point
Valdosta Symphony Orchestra
Vallejo Choral Society
Vancouver Opera (BC)
Vancouver Opera (WA)
Ventura College Opera Workshop
The Verdi Chorus
Vero Beach Opera
Virginia Symphony Orchestra
Visalia Opera Company
Westminster Choir College
Wheaton College
Willamette Concert Opera
William Jewell College
Windsor Symphony Orchestra
Winter Opera St. Louis