The premiere performance of Hanson's Lament for Beowulf (Opus 25) at the Ann Arbor Festival of 1926, conducted by Hanson. The performing symphony and choir are not named in the published sources of this information.
David Ewen, The Complete Book of 20th Century Music, rev. ed. (Englewood Cliffs, NJ: Prentice-Hall, 1958), p. 163; Steven C. Smith, liner notes for the 1991 Delos recording by the Seattle Symphony Orchestra and Seattle Symphony Chorale, p. 3.