Painless and progressive, cataracts slowly cloud the lens. The first symptom of cataracts is often decreased night vision. The light distortion caused by cataracts also frequently produces halos around lights -- again, mostly at night. Blurry vision is also common.
sonata form. n. Music. A form of a movement consisting of three sections, the exposition, development, and recapitulation, often followed by a coda.
As a result, music forms during this period were simpler and less intense than that of Baroque music. Here are some music forms during the Classical period: Sonata form - It is often the first part of a multi-movement work. It has three main sections: the exposition, development , and recapitulation.