Symphony No. 2 in D major, Op. 36, and Symphony No. 4 in B-flat major, Op. 60 are orchestral works by Ludwig van Beethoven, completed in 1802 and 1806 respectively. Both symphonies sit at the transition between Beethoven's early and middle periods, combining classical forms and transparent textures with increasing harmonic daring, expanded dynamics and rhythmic drive that point toward his more exploratory later works.