Nonetheless, the limpid purity of her tone and the smoothness of her legato line remained uniquely impressive, compensating to some extent for the weakening of her breath control. The records also display a lively singing personality as well as a surprisingly strong chest voice and a mellow timbre. Her trill remains wonderfully fluent and accurate and her diction is excellent. Overall her discs have a charm and musicality that give us a hint of why, at her peak, she commanded $5,000 a night.