Dorff has written many frequently-performed recital works for woodwinds, and music for orchestra, concert band, piano, chorus, and chamber ensembles, including often-neglected instruments as contrabassoon, piccolo, and tenor saxophone, the best-known of which are Sonatine de Giverny and Flash!, both for piccolo and piano. He has taken a particular interest in exposing young people to classical music; many of his works are written for young audiences, including Three Fun Fables, a setting for narrator and orchestra of familiar Aesop tales; Billy and the Carnival, a narrated guide to the instruments of the orchestra; Blast Off!, a travelog of a trip to outer space (the score to which was flown by NASA on the 100th mission of the Space Shuttle); and familiar stories such as Goldilocks and the Three Bears, The Three Little Pigs, and The Tortoise and the Hare, and Stone Soup: An Operatic Fable in One Delicious Act which has enjoyed well over 1000 performances.
In addition to his compositional career, Dorff is a clarinetist and saxophonist and was bass clarinetist for the Haddonfield Symphony for 20 years prior to Alan Gilbert appointing him composer-in-residence. He frequently lectures on music engraving and notation, a subject in which he is expert. Dorff is currently vice president of publishing for music publisher Theodore Presser Company; his input has also been sought in the development of leading music notation software.
Selected chamber music
9 Walks Down 7th Avenue for flute and piano
Allegro Volante for xylophone and piano
Philly Rhapsody for orchestra
Andante con Variazioni for flute and clarinet
April Whirlwind for flute and piano
August Idyll for solo flute
Cape May Breezes for wind quintet
Dance Music for Mr. Mouse for Eb clarinet and piano
Dark Romance for clarinet quartet
Deep Funk, Part 2, Dance Sonata for solo viola
Desert Dusk for alto flute and cello
Fanfare and Hustle for brass quintet
Fantasy, Scherzo and Nocturne for saxophone quartet
Fast Walk for saxophone quartet or clarinet quartet or bassoon quartet
Fireworks for flute orchestra
Flash! for piccolo and piano
Flower of St. Francis, five scenes for solo bass clarinet
Folk Song Suite for two flutes
For Elise for flute and piano
In a Deep Funk dance set for solo contrabassoon (or bass clarinet)
It Takes Four to Tango for sax quartet or clarinet quartet (or many other instrumentations)
Pastorale (Souvenirs du Frög) for clarinet and piano
Perennials for flute, clarinet, and piano
Romanza on a theme of Rochberg for solo piano
Serenade for Flute and Harp
Serenade to Eve, After Rodin for flute and guitar
Sonata (Three Lakes) for flute and piano
Sonatina d'Amore for two contrabassoons
Sonatine de Giverny for piccolo and piano
Spark for solo viola
The Day Things Went Wrong at the Pet Store - 11 Cartoons for Piano
The Flowers of St. Francis for solo bass clarinet
Three Dance Etudes for marimba duo or ensemble
The Seven Chakras for tenor saxophone and piano
The Three Little Pigs for narrator, violin, and cello
Three Romances for flute and clarinet
The Year of the Rabbit for flute quartet or ensemble
Through a Misty Arch for flute ensemble
Trees (after the poem by Joyce Kilmer) for solo flute with narration
Tweet for solo piccolo
The Seven Chakras for tenor saxophone and piano
Two Cats for flute and clarinet
Zoe & Xena for piccolo and bass clarinet
Selected orchestral music
Allegro Volante for xylophone and orchestra (or band)
Billy and the Carnival: A Children's Guide to Musical Instruments for narrator and orchestra
Blast Off! for narrator and orchestra
Concerto for Contrabassoon with clarinet, horn, and strings
Flash! for piccolo and orchestra
Goldilocks and the Three Bears for narrator with orchestra or mixed octet
Pachelbel's Christmas (A Merry Melange) for orchestra
Philly Rhapsody for orchestra
Stone Soup: An Operatic Fable in One Act, an opera for young audiences with soloists, mixed choir, and accompaniment
Summer Solstice Concerto for clarinet and string orchestra
Take the Orchestra Out to the Ballgame for narrator and orchestra
The Kiss (after a painting by Gustav Klimt) for orchestra
Three Fun Fables for narrator and orchestra or mixed octet
The Tortoise and the Hare for narrator and orchestra or mixed octet
Discography
Andante con Variazioni (Albany Records TROY 1404), Leonard Garrison flute, Shannon Scott clarinet
April Whirlwind (private label), Angela Massey flute, Vahan Sargsyan piano
August Idyll (Cantilena Records 66042-2), Laurel Zucker solo flute