Piano Concertos Nos. 9 & 21

Piano Concertos Nos. 9 and 21 are two piano concertos by Wolfgang Amadeus Mozart, composed in 1777 and 1785 respectively. These Classical-era works feature clear-textured orchestration, balanced solo-orchestra dialogue and melodic clarity, with the earlier concerto demonstrating expanded solo virtuosity and formal experimentation and the later concerto showing greater lyricism and refinement within Mozart's concerto writing.