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

I believe the answer is Classicism, a period that, according to most estimations, lasted approximately from 1730 to 1820. Concertos and sonatas existed in the Baroque period as well, but symphony's major development falls into this era, with Joseph Haydn, the so-called Father of Symphony. Sonatas and concertos were standardized by getting the structure of 3 or 4 movements, which usually went from fast to slow to fast. Symphonies usually consisted of 4 movements, with fast-slow-minuetto-fast structure. This basic standard persisted through Romanticism as well, although it was upgraded.

The gregorian chant was a major cultural milestone in the middle ages. it was one of the first codified forms of music meant to be played as written, where previously it was difficult to mass-produce and disseminate any music. what's more, these chants were also some of the first examples of musical notation: the notes and bars of today's music sheets are a reflection of centuries of evolution beginning with these chants. it became official throughout the entirety of the catholic church, meaning that nearly all of europe followed this musical notation and styling.