During what musical period did composers perfect and standardize the concerto, sonata and symphony forms?

Classicism

Explanation:

The era that spans the second half of the 18th century and the beginning of the 19th century is one of the most significant epochs in the history of music. It is the time of the formation and development of symphonic musical thinking, the creation of new forms: the sonata-symphonic cycle, sonata, chamber and concert music. The most important role in this new form was played by the powerful allegro, which was based on the principle of contrasting.

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