Piano Sonata No. 28 in A major, Op. 101, is a composition by Ludwig van Beethoven, completed in 1816. This sonata is known for its lyrical melodies and emotional depth, reflecting Beethoven's mature style. It consists of four movements, each showcasing a blend of classical structure and innovative harmonic exploration. The first movement, marked "Allegretto," introduces a gentle theme, while the second movement, "Andante," features a more introspective character. The third movement, "Allegro," brings a lively contrast, and the final movement, "Adagio," concludes the sonata with a sense of tranquility. Overall, this work exemplifies Beethoven's ability to convey profound feelings through the piano.