His Tuba Concerto and Piccolo Concerto have been performed and recorded in Australia and overseas.
In 1983 he was commissioned to compose his first major brass band work Ash Wednesday. This work was selected as the A-grade test piece for the National Band Championships in 1985 and 1988. Since then nine compositions have been selected or commissioned as test pieces for the Nationals.
McKimm awards: The Dorian Le Gallienne Award (1978), The Clarinet and Saxophone Society of Victoria Award (1984), the inaugural ANA Composition Award (1985), AMC Award for Most Distinguished Contribution to the Presentation of Australian Music in Victoria (1988)
He retired from the MSO in 1997, and in 1998 was appointed Music Director for the Eltham Concert Band (ECB), a position he held until 2005. During this period he composed, orchestrated and arranged a large body of works (over 200) for community music groups; concert band, soloists and choirs. In 2006 McKimm produced Trombone Solo (unaccompanied), Along A River and O Yellow Yellow Sweet for chamber orchestra and girls choir on the poems of John Shaw Neilson, Trombone Concerto, Double Flute Concerto and four Piano Sonatas.
McKimm is an eclectic composer. He composes for specific projects, composer in residence commissions or requests. His work covers a diverse range e.g. for students of all levels from primary school to tertiary; for non-professional community ensembles to high level professional orchestras and chamber groups; concertos for "Cinderella" solo instruments such as tuba, piccolo, viola, bass clarinet, euphonium, trombone, trumpet.