Sardelli captures all of the precocious orchestral effects in Vivaldi's score. Two of Manlio's arias are particularly outstanding: 'Sonno, se pur sei sonno' is a marvellously dark opening to Act 3, with pulsing, creepy string chords… 'Ti lascerei gl'affetti miei' is a sublime moment of minor key melancholy that commences with only a pair of oboes and bassoon before evolving into a deeply moving lament of considerable beauty and sonority that is eloquently shaped by Sardelli.