With bebop, jazz shifted to the paradigm still in place today: a subcultural art music played primarily by small combos in a jam-session format, favoring solo improvisation and aimed at a specialized market of aficionados.
A conductor is a person who stands in front of an orchestra or choir and directs its performance. On a bus, the conductor is the person whose job is to sell tickets to the passengers. On a train, a conductor is a person whose job is to travel on the train in order to help passengers and check tickets.
Definition of insulator. : one that insulates: such asa : a material that is a poor conductor (as of electricity or heat) â compare semiconductorb : a device made of an electrical insulating material and used for separating or supporting conductors.