diapason

harmonious, harmonical; in concord, in tune, in concert; unisonant, concentual, symphonizing, isotonic, homophonous, assonant; ariose, consonant., measured, rhythmical, diatonic, chromatic, enharmonic., melodious, musical; melic; tuneful, tunable; sweet, dulcet, canorous; mellow, mellifluous; soft, clear, clear as a bell; silvery; euphonious, euphonic, euphonical; symphonious; enchanting (pleasure-giving) [more]; fine-toned, full-toned, silver-toned.