Modal register• Modal voice occurs at mid-frequency ranges, when the thyroarytenoid is contracted, shortening the effective length of the vocalis, and relaxing the passive cover layers to produce rounded vocal fold edges and allow complete glottic closure with large vibratory amplitude and mucosal wave.• Modal register encompasses the range of frequencies usually employed in speech andsinging.• The membranous portions of the vocal folds are adducted and make complete closure inthe closed phase of each vibratory cycle.