II. Largo Piano Concerto No. 1 (Beethoven)

the second movement in key of a-flat major, in context key relatively remote concerto s opening key of c major. if movement adhered traditional form, key f major, subdominant key, or in g major, dominant key.

like many slow movements, movement in ternary (aba) form. opening section presents several themes developed in middle b section.

typical performances last more ten minutes.