hum, thrum, bleats, moans, whine, tinkly, wail, shrilling, screeching, cacophony, whir, tinny, babble, whirr, tuneless, cacophonous, monotone, cacophonic, muzak, burbling, tinkling, dirge, soporific, caterwaul, unmelodic, clatter, staccato, monotonous, prattle, chirrup, warbling, riff, bleeps, toneless, braying, blare, clangor, keening, twangs, nattering, celli, clacks, quavery, hiss, blather, squawking, gabbling, murmuring, clanging, gibbering, squalling, yowl, clunks, mewl, croaking, sonorous, rumbling, whispery, doomy, mumbling, muffled, screechy, yammering, sounding, glissando, throb, overloud, pontificating, sibilant, tintinnabulation, chiming, shriek, trebly, bombast, gurgling, inaudibly, handclaps, hypnotic, growls, arioso, moog, guttural, pattering, beeping, breathy, tremolos, bellowing, mellifluous, descant, din, choruses, falsettos, atonal, irritatingly, howl, discordant, jabbering, whooshing, crescendoes, thundering, krautrock, whinnies, drone, humming, ringing, chanting, creaking, rumble, thumping, clicking, hissing, moaning, whining, buzz, ticking, argumentative, bewitching, blandest, bombastic, captivating, chastened, churchillian, colloquial, commanding, convincing, crabbed, declamatory, deliberative, denunciatory, enthralling, entrancing, expostulatory, fluent, honied, hortatory

dorbeetle

intonation, pitch contour

abuzz, buzzing, drone, monotone, noisy