Complex sentence: The first theme group tended to outline the tonic chord, and the second theme tended to be more "cantabile" in character, but this was far from universal--as Haydn's monothematic expositions, and Beethoven's early rhythmic themes show.
Split into simpler sentences: The first theme group tended to outline the tonic chord, and the second theme tended to be more "cantabile" in character. But this was far from universal--as Haydn's monothematic expositions, and Beethoven's early rhythmic themes show.