['?'] for voice and piano (ca. 1827, fragment; lost) Vocal composition exercises D 17, Composition exercises on "Quell’ innocente figlio" ['Quell’ innocente figlio'] for various vocal ensembles, Arie dell’ Angelo (1812?, also appears as "Aria dell’ Angelo"; 9 settings; No. 1 Solo for soprano; No. 2 Duo for two sopranos; No. 3 Trio for soprano, alto and tenor; No. 4 Quartet for soprano, alto, tenor and bass; No. 5 Trio for soprano, alto and tenor; No. 6 Trio for soprano, alto and tenor; No. 7 Quartet for soprano, alto, tenor and bass; No. 8 Quartet for soprano, alto, tenor and bass; No. 9 Quartet for soprano, alto, tenor and bass) D 33, Composition exercises on "Entra l'uomo allor che nasce" ['Entra l'uomo allor che nasce'] for various vocal ensembles, Aria di Abramo (1812, also appears as "Aria di Abramo"; 6 settings; No. 1 for soprano; No. 2 Duo for soprano and alto; No. 3 Trio for soprano, alto and tenor; No. 4 Quartet for soprano, alto, tenor and bass; No. 5 Quartet for soprano, alto, tenor and bass; No. 6 Quartet for soprano, alto, tenor and bass) D 34, Composition exercises on "Te solo adoro" ['Te solo adoro'] for soprano, alto, tenor and bass (1812, 2 settings; 2nd setting is a fragment) D 35, Composition exercises on "Serbate, o Dei custodi" ['Serbate, o Dei custodi'] for various vocal ensembles (1812, 3 settings; No. 1 Quartet for soprano, alto tenor and bass; No. 2 Chorus for mixed choir; No. 3 Solo for tenor) D 619, Vocal exercises for two voices and figured bass "Singübungen" (1818, figured bass usually realized for piano) D deest, Canon ["?"] ['?'] in C major for five voices (1826?) Vocal works, fragments and sketches of unknown genre D 988A, Accompaniment part in B-flat major for piano (after 1820, fragment; for a multi-part vocal composition?) D deest, Sketch of a composition "?" ['?'] for unspecified voices and orchestra (1811?, sketch) D deest, Aria "?" ['?'] for bass and piano (?) (1812, sketch; also appears as "Allegretto in D major") D deest, Vocal composition "?" ['?'] for mixed choir (?) (1818?, fragment without text) D deest, Accompaniment for a vocal composition "?" ['?'] (1821?, fragment) D deest, Vocal composition "?" ['?'] for unspecified voices (1821?, fragment) D deest, Fragment of a cantata (?) "?" ['?'] for unspecified soloists, choir and orchestra (date unknown, fragment without text) D deest, Song