Includes facsimiles of the following autograph manuscripts: Larghetto con passione from Quartetto XI (Ms. Cas. 5639)--frontispiece and violin part; Sonata movimento perpetuo (Ms. Cas. 5590)--instrumental parts; Andante amoroso (Ms. Cas. 5594)--p. 3-4 of score; Sonate à mouvement perpétuel (Ms. Cas. 5589)--instrumental parts.