astronomy: Which planet was discovered in 1930 ?

Questions

(It.) - Usually an 18th century term for an entertaining suite of movements for chamber ensemble or orchestra. Mozart wrote in this style.?

(Fr., 'amusement') - (I) Entertainment in ballet form, sometimes with songs, found in operas or plays for contrast (e.g. the operas of Lully. (2) Same as divertimento. (3) Instrumental piece or fantasia employing popular tunes.?

- Same as serial music.?

(It.) - Sweet and gentle.?

- Very sweetly.?