During 1948, amid many engagements, Ferrier performed Brahms's Alto Rhapsody at the Proms in August, and sang in Bach's Mass in B minor at that year's Edinburgh Festival.
Durante 1948, en medio de moitos compromisos, Ferrier interpretou a Alt-Rhapsodie de Brahms nos Proms en agosto, e cantou na Misa en Si menor de Bach no Festival de Edimburgo.