What dates encompass the classical era of music?

This is a picture i'm drawing for my art class! i need to know if it good (first of all) and that it represents dia de los muertos (

Acurator decides to display an eighteenth-century painting in a windowless room with controlled temperature and humidity. pick the answer that best describes the reasons for her choice: (1 point) 1)the curator wants to make sure that the temperature and humidity are comfortable for visitors. 2)keeping the temperature and humidity at a set level will save money. 3)the ultraviolet rays will damage the painting by fading and flaking the paint. 4)ultraviolet rays will fade the paint pigment and high temperature and humidity will damage the paint.

Where does middle c get it’s name? a. it sits in the middle of a brass clef b. it sits in the middle of the grand staff c. if sits in the middle of the alto clef d.its sits in the middle of the treble clef