musical composition vs pastorale

Other hyponyms of musical composition include morceau, sheet music, arrangement, musical arrangement, realisation, realization, intermezzo, introit, solo, duet, duette, duo, trio, quartet, quartette, quintet, quintette, sestet, sextet, sextette, septet, septette, octet, octette, bagatelle, divertimento, serenade, canon, etude, idyl, idyll, pastoral, sonata, toccata, fantasia, musical passage, passage, movement, larghetto, suite, symphonic poem, tone poem, medley, pastiche, potpourri, nocturne, notturno, song, vocal, study, capriccio, motet, program music, programme music, incidental music, csardas, czardas.