What are the similarities and differences in the musical styles of Bach, Beethoven, and Brahms?

The similarities among Bach, Beethoven, and Brahms lie in their use of complex harmonies, intricate melodies, and structural forms in their compositions. However, Bach's music is more Baroque in style with contrapuntal textures, Beethoven's is characterized by emotional depth and innovation, and Brahms' compositions often blend classical forms with Romantic expressiveness.