Between 1928 and 1967, Sherwood Music School offered music lessons for piano and violin in the form of correspondence courses. Administered by the Extension Division of the School, these courses were taught to students all throughout the country. In 1928, then Vice President Arthur J. Llewelyn compiled the piano lessons into a series of lesson books for varying skill grades based on the courses written by William Hall Sherwood for the Siegel-Myers Correspondence School of Music. By 1937, a series of Violin Lessons were also written and available for affiliated teachers.