6 Duets for Violin by Frank Vassallo. Duet for Two Violins No.1 in A maj (1957): Allegro Moderato, 4/4, A maj; Andante, 4/4, D maj; Duet for Two Violins No.2 in G maj (1960): Moderato, 4/4, G maj; Andantino, 4/4, C maj; Duet for Two Violins No.3 in D maj: Allegretto, 4/4, D maj; Andante, 3/4, G maj; Rondo - Allegretto, 6/8, D maj; Duet for Two Violins No.4 in C maj: Moderato, 4/4, C maj; Larghetto, 4/4, F maj; Allegro Assai, 4/4, C maj; Duet for Two Violins No.5 in E Maj: Moderato, 4/4, E maj; Larghetto, 3/4, A min; Allegro Moderato, 3/4, E maj; Duet for Two Violins No.6 in A Maj: Moderato, 4/4, A maj; Larghetto, 4/4, A min; Moderato, 6/8, A maj.
A Lament [for Cello and Piano] by Frank Vassallo - Andante 4/4, C min
An Oratorio for Organ and Voices [Mysteries of the Rosary - Joyful] by Frank Vassallo in 5 movements: The Annunciation for Mez, T, Bar or B, Choir (S, A); Andante, 4/4, G maj; The Visitation for Mez., A, T; Maestoso, 4/4, G maj; The Nativity for Mez,A,T,B, and Choir (SATB): Moderato, 4/4, G Maj; The Visitation in the Temple for A,T,B: Andante, 3/4, D maj; Jesus Lost and Found for Mez, A, T.: Andante, 3/4, D maj.
An Oratorio for Organ and Voice [Mysteries of the Rosary - Sorrowful] by Frank Vassallo in 5 movements: Gethsemane for 2,T1,T2, B; 3/4, A min; The Scourging at the Pillar for T1, T2, Choir (T,B); 3/4, C maj; The Crowning with Thorns for T1,T2, Choir (T,B); 3/4, G maj; Calvary for T,B; Moderato, 2/4, A min; The Crucifiction for T.B. Choir (T,B); 4/4, G min.
Ave Maria by Frank Vassallo - Andante, 4/4, A maj. Scored for T solo, B solo, voice, fl, ob, cl in Bb, tpt in Bb, vl1, vl2, vla, vlc, db, pf.
Ave Maris Stella by Frank Vassallo - Allegretto, 4/4, D maj.
Bi Tlikki Tlikki, Song by Frank Vassallo - Moderato, 4/4, C maj. Words by Marie Therese Vassallo
Cantico delle Creature di S. Francesco D'Assisi, Cantata for Soprano and Tenor with Flute, Oboe and Strings by Frank Vassallo - Andante, 4/4, D maj; Andantino, 3/4, G maj; Andantino Grazioso, 4/4, C maj; Allegretto, 4/4, D maj; Andantino, 3/4, E min; Allegretto, 4/4, A maj; Andantino, 3/4, G maj; Andante, 4/4, E min; Andantino, 4/4, D maj; Allegro, 3/4, C maj. Scored for S, T, fl, ob, vl1, vl2, vla, vlc, db.
Cibavit Eos - Introito, Oculi Omnium - Graduale by Frank Vassallo - Introito - Andantino, 3/4, G maj; Graduale - Andante, 4/4, F maj.
Biċ-Ċajt, Song by Frank Vassallo - Rock Moderato, 4/4, C maj. Words by Marie Therese Vassallo. Scored for voice, 3sax, 2tpt, vl, vla, vlc, rhythm.
Concerto for Clarinet and Horn by Frank Vassallo - Allegro Moderato, 4/4, Bb maj; Andantino, 2/4, Bb maj; Rondo, 2/4, Bb maj. Scored for cl in Bb, hn in F, vl1, vl2, vla, vlc, db.
Concerto in A Minor for Oboe and Clarinet Quartet by Frank Vassallo - Andante, 3/4, A min; Larghetto, 4/4, D min; Allegro, 6/8, A min.
Concerto in A Minor for Oboe and Pianoforte by Frank Vassallo - Andante, 3/4, A min; Andante, 4/4, D min; Allegro, 6/8, A min.
Concerto in A Minor for Oboe and String Quartet by Frank Vassallo - Andante, 3/4, A min; Andante, 4/4, D min; Allegro, 6/8, A min.
Concerto in D Major for Harp and Orchestra by Frank Vassallo - Moderato, 4/4, D maj; Andante, 3/4, G maj; Allegretto, 2/4, D maj. Scored for fl, ob, harp, vl1, vl2, vla, vlc, db.
Concerto in F Major for Flute and String Orchestra by Frank Vassallo - Allegro Moderato, 4/4, F maj; Andante, 4/4, Bb maj; Tempo di Minuetto, 3/4, f Maj; Allegretto, 4/4, F maj.
Dejjem Nibqa' Nħobbok, Song by Frank Vassallo - 4/4, C maj. Words by Marie Therese Vassallo.
Divertimento No.1A in C Major for Wind Instruments by Frank Vassallo - Allegretto, 4/4, C maj; Andantino, 4/4, F maj; Allegro Rondo, 2/4, C maj. Scored for cl1 in Bb, cl2 in Bb, hn1 in F, hn2 in F, bsn1, bsn2.
Divertimento No.1B in C Major for Brass Instruments by Frank Vassallo - Allegretto, 4/4, C maj; Andantino, 4/4, F maj; Allegro Rondo, 2/4, C maj. Scored for tpt1 in Bb, tpt2 in Bb, trb1, trb2, euf, tba.
Divertimento No.2 in Bb Major for Wind Instruments by Frank Vassallo - Allegretto, 3/4, Bb maj; Grave, 12/8, Eb maj; Allegro, 3/4, Bb maj. Scored for fl, ob, cl1 in Bb, cl2 in Bb, hn1 in F, hn2 in F, bsn1, bsn2.