Scottish soprano Rachel Speirs made her solo debut at Oper Frankfurt last season as 2. Mädchen in a new production of Fortner's Bluthochzeit by Àlex Ollé, and this season makes her role debut as Susanna in Le Nozze di Figaro with Oxford Opera. Further previous and upcoming engagements include Pamina & Papagena/Die Zauberflöte  for Royal Ballet & Opera Create and Sing, Musetta/La bohème for Longborough Festival Opera, the Bird/Blond Eckbert for English Touring Opera, Adina/The Implausible Potions of Dr Dulcamara for Longborough Festival Opera. In Summer 2024 she made her solo recital debut in the Linbury Foyer at the Royal Opera House, as well as her soloist debut at the Royal Albert Hall in Mozart’s Requiem. Rachel sings and presents for the Royal Ballet & Opera Create & Sing programme, has created numerous roles in new operas for young audiences with English Touring Opera, and has produced and delivered workshops and projects for SEND groups and people living with dementia for English National Opera and the Wigmore Hall. Rachel's recording debut singing Lotty in The Soldier's Legacy by G.A. MacFarren was published in 2023 by Retrospect Opera.

Rachel was a quarter-finalist in the 2025 International Music Competition Cologne, and won the Betty Bannerman Award for French Song and the Joyce and Michael Kennedy Award for Singing Strauss in 2020. Rachel is currently a member of the Oper Frankfurt Chorus.