Name the Artist: Lights Out?

Questions

- Term describes the use of several choirs performing both separately and jointly in a composition.?

- The combining of different metres simultaneously (e.g. 2 / 4 against 3 / 4 or 6 / 8).?

- A style of music in two or more parts in which (as opposed to homophony) each part is independent and of equal importance. Therefore, polyphonic music implies the use of counterpoint, and some of the most important forms are the motet, canon and fugue. Composers include Palestrina, Byrd and Bach.?

- The systematic use of quite different rhythms sounding simultaneously. Polyrhythmic devices are especially used in the 20th century.?

- The use of two or more keys performed simultaneously and employed by Stravinsky, Holst and Milhaud. When only two keys are used, this is referred to as bitonality.?