Edited by Thomas Seedorf & Christian Beyer.  For bass.  Urtext Edition.  Preface in Ger. and Eng.  Recitatives: Così dunque tradisci; Alcandro, lo confesso - Arias: Aspri rimorsi atroci K. 432 (421a); Non so d'onde viene K. 512; Mentre ti lascio, oh figlia K. 513; Un bacio di mano K. 541; Per questa bella mano K. 612 and Io ti lascio, oh cara, addio K. Anh. 245 (621a) - Kriegslied: Ich möchte wohl der Kaiser sein K. 539.  The musical text presented in this edition is free from practical references on performance aspects or suggestions on performance practice.  An accompanying booklet gives detailed explanations on the execution of appoggiaturas and other performance practice phenomena relevant to each aria.  In addition, there is a choice of suggestions for the performance of cadenzas and lead-ins as well as for the ornamentation of dal segno parts, which are often found in the early Mozart arias.  Score.