What members of the brass family are featured playing solos in the twelfth variation? britten, young person's guide?

The answer is the trombones and tuba. The French horns proclaim the start of the tenth variety [9:35– 10:20] took after by trumpets in the eleventh variety. This exhibit of the metal family closes with a twelfth variety highlighting trombones and tuba [10:55– 11:51]. The remainder of the varieties, number 13, grandstands a wide range of percussion instruments in blend with the timpani. Listen first for bass drum and cymbals, trailed by tambourine and triangle, at that point the catch drum and wood square, trailed by xylophone, at that point castanets and gong, and, at last, the whip.