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Mezzo on a mission

Roselin Osser, mezzo soprano, has combined her lifelong passion for performing arts with strong motivation to reduce human impact on the environment. She earned degrees in Mechanical Engineering and Building Technology from Tufts University and the Massachusetts Institute of Technology (MIT) in parallel to her vocal studies, now balancing an unusual dual career as both a classical singer and energy consultant for prominent New England green building projects. She is very proud to have recently worked as energy efficiency consultant for the new East Providence High School!

Praised as a “gorgeous, mellifluous mezzo. . . with vivid expression and engaging intensity," by the Boston Musical Intelligencer, mezzo-soprano ROSELIN OSSER has established a reputation as a dynamic performing artist. Recent seasons have included alto soloist debuts in Mozart's Requiem with the Masterworks Chorale, Handel's Messiah with the Mystic River Chorale, Pergolesi’s Stabat Mater with the Easton Chamber Music Festival, and Mendelssohn’s Elijah with both the Heritage Chorale and the Pioneer Valley Symphony Orchestra. Osser has also excelled in comic and whimsical opera roles including The Fox in The Little Prince with NEMPAC Opera Project, The Astronomer in Jack and Jill and the Happening Hill with Salt Marsh Opera, the title role in El Gato con Botas (The Spanish “Puss-in-Boots”) with OperaHub, Pitti-Sing in The Mikado with Opera Providence, and Rosina in The Barber of Seville with Longwood Opera. Here's Roselin as The Fox in The Little Prince. Click to hear an excerpt.

We're delighted that Roselyn Osser will be joining us on March 5, 2022 to perform the alto solos in two Baroque masterworks: Bach's Magnificat in D, and Heinrich Schütz's Musikalische Exequien. To learn more, please visit

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