Schoettle was a composer, musicologist, pianist and teacher. His compositions range from piano works to chamber pieces to works for full orchestra. Among the many works programmed (often with Schoettle himself performing) include:
-A concerto for two pianos and orchestra (1952), reviewed as "beautifully melodic;"
-"Gavotte" for piano
-Trio for Violin, Cello and Piano (1962)
-"Flight," A Song for Tenor, Clarinet, and Piano on a Poem by John Gillespie Magee
-Quartet for Oboe, Violin, Viola, and Cello (which was written at the request of Lady Barbirolli (1966)
-Song: "Of Himself"
-"Fear of the Lord" for Chorus and Organ
-Amores (I - IV) (1960)
* Fantasy for Strings (1964).