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Daniel Rosenberg is a spieltenor, composer, librettist and producer based in Copenhagen, Denmark.
Rosenberg’s 2026 season begins with a residency at The Gaslight Theatre in Tucson, Arizona performing Jack Diamond in the western musical Tombstone. In March he joins members of the Tucson Symphony Orchestra and SPITH Schola Cantorum as featured soloist in Bach’s B Minor Mass. Soon after he makes the world premiere in the leading role of Ivan Illich in the new opera Death of a Clerk by Lyle Cohen at DKDM in Copenhagen. He continues the season with his festival debut at Festival and Friends in Copenhagen featuring 8 Songs for a Mad King. In the late summer, he joins the Young Nordic Music Days festival for the debut of the new opera What comes after by Jakob Thonander Glans in which Rosenberg originates the role of The Maoist. Daniel then finishes the 2026 Season as Alfredo in Violetta tar bussen, a coproduction of Riksteatern and SADGIRLS - a newly conceived indie/opera cross genre version of La Traviata on a moving Stockholm metro bus.
In 2025 Rosenberg’s production collective OperaHole debuted to critical acclaim with their program: screen (mad scenes), an anti-technological horror show featuring Peter Maxwell Davies, Donizetti, and a new horror play called recursion. “OperaHole looks like a strong contender to carry on our tradition of playful underground opera.” said Sune Anderberg for Seismograf. Rosenberg also presented his Arizona Daily Star-featured recital program Aphelion last year alongside pianist Michael Dauphinais and hornist Nelson Ricardo Yovera Perez, raising funds for The Primavera Foundation.
He has performed roles including Monostatos, Die Zauberflöte; Mercurio, La Callisto; George III, 8 Songs for a Mad King; Prince Gabriel iii’s Trainer’s Son; Vinkensport; Joey/Mantis, Vespa; Peter Ginz, Echoes in the Darkness; Peter Quint, The Turn of the Screw; and more. Rosenberg made his professional debut with Onsite Opera in Il Tabarro singing the song seller on the historic 1908 lightship the Ambrose in 2023. In 2025 Rosenberg joined the Malmö Opera Chorus for their production of Lohengrin, and in 2022 he joined the Santa Fe Opera for workshops of the new opera The Righteous by Gregory Spears. Rosenberg has performed roles in music theatre including Chairman, The Mystery of Edwin Drood; Jesus, Jesus Christ Superstar; Leaf Coneybear, The 25th Annual Putnam County Spelling Bee and more. He made his broadway stage debut in 2016 at the Minskoff Theatre in The Jimmy Awards.
Daniel also performed the role of Narrator in his original musical: Richard! Rosenberg has written and produced multiple musicals with his ensemble Join or Die Productions, and was awarded the NEC Entrepreneurial Musicianship Grant for his work on his musical Ghost Riders in the Sky.
Daniel Rosenberg sings on staff with the Hellerup Kirkekor, and has sung professionally with the Christ Church Choir at Christ Church NYC on 59th, the Oberlin College Choir, and with the New England Conservatory Chamber singers. In 2025 he joined St. Philips in the Hills’ Schola Cantorum Choir in their Lincoln Cathedral Residency in Lincoln, UK. He has also sung on staff at St. John’s Cathedral in Denver, and at Trinity Cathedral in Cleveland. Daniel also previously filled the role of Cantor at Christ the King Episcopal in Tucson, Arizona.
Rosenberg is an alumnus of the Tucson Arizona Boys Chorus. He attended Oberlin Conservatory from 2016-2017, and New England Conservatory through 2021 where he studied with Karen Holvik and earned his Bachelor of Music. He earned his Master of Music in Vocal Performance at Mannes School of Music in 2023 studying with Bill Burden. He now coaches with Mats Knutson.