What is TRUE about the genre known as hot jazz? Multiple musicians use improvisation at the same time.

Only one instrument at a time is allowed to improvise.

Improvisation is not permitted; the score is unchanged.

The “frontline” instruments are used less than previous styles.

the conditions that made the byzantine empire vulnerable to attacks by the muslin turks were the sack of constantinople by western crusaders, the conquests of the sultanate of rum, presence of rival kingdoms and finally the set up of fiefdoms at the empire which were owned by the ghazis (turkish warriors).

they are best known for the cliff pueblos found throughout arizona, new mexico, colorado and utah. and for their development of desert farming.

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-lavira: )

a system of cooperative federalism emerged, as the powers of the federal government expanded.

eastern europe, the region of europe that is east of germany, was heavily influenced by the byzantine empire. through byzantine traders, and more importantly, the church, byzantium influenced the art, literature, and architecture of the region