Philharmonic concert, acclamation, accompaniment, accord, accordance, act in concert, act together, affiliate, affinity, agreement, agreement of all, alliance, ally, amalgamate, argue, arrange, assent, associate, association, attune, attunement, band, band concert, band together, be in league, bipartisanship, cahoots, calculate, cast, chamber concert, chime, chiming, chorus, club together, co-working, coact, coaction, coadjuvancy, coadministration, coagency, coalesce, cochairmanship, codirectorship, coherence, coincide, coincidence, collaborate, collaboration, collaborativeness, collectivism, collectivity, collude, collusion, combination, combine, combined effort, commensalism, common assent, common consent, common effort, common enterprise, communalism, communism, communitarianism, community, compatibility, complicity, concentus, concert, concerted action, concomitance, concord, concordance, concourse, concur, concurrence, confederate, confluence, conformance, conformation, conformity, congeniality, congruence, congruency, congruity, conjunction, consensus, consensus gentium, consensus of opinion, consensus omnium, consent, consentaneity, consilience, consistency, consolidate, consonance, consonancy, consort, conspiracy, conspire, contrive, cooperate, cooperation, cooperativeness, correspondence, cut out, debate, design, devise, diapason, discuss, do business with, dramatico-musical, duet, duumvirate, ecumenicalism, ecumenicism, ecumenism, equivalence, esprit, esprit de corps, euphony, federate, fellow feeling, fellowship, figure, forecast, frame, fuse, general acclamation, general agreement, general consent, general voice, get heads together, get together, go partners, hang together, harmonics, harmonize, harmony, heavy harmony, hold together, homophony, hook up, instrumental, intend, intersection, jazz, jazzy, join, join in, join together, joining of forces, joint effort, joint operation, junction, keep together, lay plans, league, league together, like-mindedness, make a projection, make arrangements, make common cause, mass action, meeting of minds, merge, methodize, monochord, monody, morale, musical performance, musical program, mutual assistance, mutual understanding, mutualism, mutuality, octet, one accord, one voice, oneness, orchestral, organize, overlap, parallelism, parasitism, partner, peace, performance, philharmonic, plan, plan ahead, play ball, pooling, pooling of resources, pop concert, pops, popular concert, prearrange, program, program of music, project, prom, promenade concert, pull together, pulling together, put heads together, quartet, quintet, rapport, rationalize, reciprocate, reciprocity, recital, rock, same mind, saprophytism, schedule, schematize, self-consistency, septet, service of music, set up, settle, sextet, shape, simultaneity, single voice, solidarity, stand together, swing, symbiosis, symmetry, symphonic, symphony, symphony concert, sync, synchronism, synchronization, syncopated, synergism, synergy, systematize, tally, team spirit, team up, teamwork, three-part harmony, throw in together, tie in, tie up, timing, total agreement, trio