Although sound has always played an important role in theatrical production, it is not considered

As it relates to music of the Classical era, a refrain may be thought of as:

a) a cadenza-like insertion at the end of a movement b) the main theme in a rondo movement c) the trio section of a Minuet's larger second section d) the slow introduction to a symphony

Two important tape-based consumer formats emerged in the 1960s; by the 1970s, this format was the

most popular:

a. audiocassette b. reel-to-reel c. four-track d. eight-track