Misc: According to the saying, if silence is golden, what is silver?

Questions

(Fr., 'together') - (l) A small group of performers (e.g. a vocal or instrumental ensemble; (2) In opera, an ensemble is an selection for several soloists with or without chorus.?

(Fr.) - (I) Interval during a play or opera. (2) Music to be played between the acts of a play or opera.?

(Fr.) - Chiefly a 17th century French music term for (I) an introductory piece for the entry of characters in ballet or opera; (2) an independent instrumental piece of similar nature; (3) the equivalent of a scene or act in ballet or opera.?

- (I) The entrance of a theme in a fugue occurring not only at the beginning but also at later stages in the composition. (2) A 17th century term for a prelude.?

- (I) In a rondo, this is a contrasting section between episodical form recurrences of the main theme. (2) In a fugue, it is a section linking (by means of contrast, modulation or possibly using subject material) one entry and another. In both contexts, an episode has a subordinate role.?