Synonyms to play by ear

accompany, agree, associate, associate with, assort with, attend, band together, be in phase, be in time, chaperon, chaperone, chord, coexist, coextend, coincide, combine, companion, concertize, concur, confederate, consociate, consort with, contemporize, convoy, couple with, do, escort, execute, flock together, go along with, go with, hang around with, herd together, interpret, isochronize, keep company with, keep in step, keep pace with, make music, match, perform, play, render, run with, squire, symphonize, synchronize, time, usher, wait on, ad lib, a beneplacito, a discretion, ad arbitrium, ad libitum, ad-libbing, al piacere, arrangement, at choice, at pleasure, at short notice, at sight, at will, be caught napping, be surprised, be taken unawares, be unprepared, by ear, caught napping, caught off balance, caught short, cook up, dash off, disqualification, do offhand, extemporaneous, extemporaneously, extemporaneousness, extemporarily, extemporariness, extemporary, extempore, extemporization, extemporize, extemporized, fake, go off half-cocked, haphazard, hasty, have no plan, impro