Bass-baritone John David Adams has appeared in concert, opera, recital, and professional vocal ensembles across the country, in repertoire ranging from Baroque masterworks to world premier compositions. He is a member of Maine’s professional early music ensemble St. Mary Schola, as well as New England’s Zenith Ensemble and Amethyst Chamber Ensemble. In addition to Blue Hill Bach, he is a frequent guest artist at the White Mountain Bach, Portland Early Music, and Lincoln Arts festivals, His concert engagements include the San Francisco Symphony, Berkeley Symphony, Portland Symphony, Bangor Symphony, San Francisco Bach Choir, North Shore Philharmonic, Maine Pro Musica, Colby Symphony, Bowdoin Chorus, Choral Arts Society, Chorus Pro Musica, Vox Nova Chamber Choir, Masterworks Chorale, and Oratorio Chorale. Opera and musical stage credits include productions by Opera Boston, San Francisco Lyric Opera, Berkeley Opera, Granite State Opera, Opera Maine, Apollo Opera, and New England Light Opera. He studied voice and opera at the Hartt School of Music and San Francisco Conservatory of Music, and currently serves on the voice faculty at Bay Chamber Concerts Music School.