Piano Concerto no. 1 in D minor, op. 15

The Piano Concerto No. 1 in D minor, Op. 15, is a work for piano and orchestra completed by Johannes Brahms in 1858. The composer gave the work's public debut in Hanover, the following year. It was his first-performed orchestral work, and (in its third performance) his first orchestral work performed to audience approval.