bipartisanship, both, brace, coaction, coadjuvancy, coadministration, coagency, cochairmanship, codirectorship, collaboration, collaborativeness, collectivism, collusion, commensalism, common effort, common enterprise, communalism, communism, communitarianism, community, complicity, concert, concord, concordance, concurrence, cooperation, cooperativeness, couple, couplet, distich, double harness, doublet, duad, duettino, duo, duumvirate, dyad, ecumenicalism, ecumenicism, ecumenism, ensemble music, ensemble singing, esprit, esprit de corps, fellow feeling, fellowship, harmony, joining of forces, joint effort, joint operation, mass action, match, mates, morale, mutual assistance, mutualism, mutuality, octet, pair, part music, part singing, part song, polyphonic music, pooling, pooling of resources, pulling together, quartet, quintet, reciprocity, septet, septuor, sestet, set of two, sextet, solidarity, span, symbiosis, synergism, synergy, team, team spirit, teamwork, terzet, terzetto, the two, trio, triumvirate, troika, twain, two, twosome, united action, yoke
duality, dualism, duplicity, biplicity, biformity, polarity, two, deuce, couple, duet
, brace, pair, cheeks, twins, Castor and Pollux, gemini, Siamese twins, fellows, yoke, conjugation, dispermy, doublets, dyad, span, two, twin, dual, dualistic, double, binary, binomial, twin, biparous, dyadic, conduplicate, duplex, biduous, binate, diphyletic, dispermic, unijugate, tete-a-tete, coupled, conjugate, both, both the one and the other.
music, concert, strain, tune, air, melody, aria, arietta, piece of music, work, number, opus, sonata, rondo, rondeau, pastorale, cavatina, roulade, fantasia, concerto, overture, symphony, variations, cadenza, cadence, fugue, canon, quodlibet, serenade, notturno, dithyramb, opera, operetta, oratorio, composition, movement, stave, passamezzo, toccata, Vorspiel, instrumental music, full score, minstrelsy, tweedledum and tweedledee, band, orchestra, concerted piece, potpourri, capriccio, vocal music, vocalism, chaunt, chant, psalm, psalmody, hymn, song, canticle, canzonet, cantata, bravura, lay, ballad, ditty, carol, pastoral, recitative, recitativo, solfeggio, Lydian measures, slow music, slow movement, adagio, minuet, siren strains, soft music, lullaby, dump, dirge, pibroch, martial music, march, dance music, waltz, solo, duet
, duo, trio, quartet, quartett, septett, part song, descant, glee, madrigal, catch, round, chorus, chorale, antiphon, antiphony, accompaniment, second, bass, score, bourdon, drone, morceau, terzetto, composer, musician, musical, instrumental, vocal, choral, lyric, operatic, harmonious, Wagnerian, adagio, largo, larghetto, andante, andantino, alla capella, maestoso, moderato, allegro, allegretto, spiritoso, vivace, veloce, presto, prestissimo, con brio, capriccioso, scherzo, scherzando, legato, staccato, crescendo, diminuendo, rallentando, affettuoso, obbligato, pizzicato, desto, in notes by distance made more sweet, like the faint exquisite music of a dream, music arose with its voluptuous swell, music is the universal language of mankind, music's golden tongue, the speech of angels, will sing the savageness out of a bear, music hath charms to soothe the savage beast.