This study was concerned with the nature, status, and extent of adult participation in local public school adult education music classes in 30 cities in the United States in the population range 150,000-250,000. Findings indicated that the objectives and content of the music classes were geared to the needs and interests of amateurs who had turned to music as a leisure-time activity as either listeners or participants. Classes were categorized as either voice or instrumental instruction, music appreciation, group participation in large or small ensembles, or theory and fundamentals of music. Responses showed that music had a lower program priority than industrial training or adult basic education. No significant change was revealed between 1958 and 1963 in the number of classes offered in adult education programs; but adults showed increasing interest in voice or instrumental instruction, music appreciation, and ensemble work, and decreasing interest in theory and fundamentals. Adult education directors tended to favor two-hour classes, to schedule them on a weekly basis, to favor a 24-week school year, and to evaluate classes annually. (author/ly)