Synonyms to plain song

accompaniment, accession, accessory, accordance, addenda, addendum, additament, addition, additive, additory, additum, adjunct, adjuvant, agreement, alliance, alto, annex, annexation, appanage, appendage, appendant, appurtenance, appurtenant, association, attachment, augment, augmentation, baritone, bass, basso continuo, basso ostinato, bassus, cahoots, canto, cantus, cantus figuratus, cantus planus, co-working, coaction, coda, coetaneity, coetaneousness, coevalneity, coevalness, coexistence, coincidence, collaboration, collectivity, collusion, combination, combined effort, complement, concert, concerted action, concomitance, concomitant, concordance, concourse, concurrence, confluence, conjunction, consilience, conspiracy, contemporaneity, contemporaneousness, continuation, continuo, contralto, cooperation, corollary, correspondence, descant, drone, extension, extrapolation, figured bass, fixture, ground bass, increase, increment, isochronism, junction, line, offshoot, parasitism, part, pendant, plain chant, prick song, reinforcement, saprophytism, side effect, side issue, simultaneity, so