How did Giovanni Battista Sammartini contribute to the development of the symphony?

Giovanni Battista Sammartini was a pivotal figure in the development of the pre-Classical symphony, exerting a significant influence on the later Classical style of composers such as Joseph Haydn and Wolfgang Amadeus Mozart.1

His contributions to the genre include:

• Pioneering Concert Symphonies: He was among the first composers to write symphonies specifically for concert performance, evolving the form from its origins in Italian opera overtures.1
• Structural Innovation: Sammartini utilized an incipient sonata form and demonstrated a firm grasp of modulation, which helped shape the dramatic structure of the symphony.2
• Orchestral Evolution: While initially dependent on Baroque models, he abandoned the continuo by approximately 1760. He increasingly integrated wind instruments—such as oboes, flutes, and bassoons—giving them independent, idiomatic parts rather than merely using them to fill harmonies.2
• Stylistic Development: His later works are characterized by long, expressive, songlike phrases and a sophisticated use of counterpoint in inner parts, which provided a foundation for the symphonic language that followed.2