This study aimed to identify the current status of music elective courses based on the 2015 revised curriculum. A complete enumeration survey on the music curriculum of all types of high schools across the nation using NEIS from 2018 to 2021 was conducted. Course offerings were categorized by educational foundation, type, department, and subject. The result of the study revealed that, after applying the 2015 revised curriculum, the rate of offering music electives in Korean high schools increased for all school types. Compared to general high schools, private, special-purpose, and vocational high schools, and vocational high schools had a lower rate of opening multiple subjects. Also, compared to national and public schools, the number of courses opened in private schools were small. In order to solve this problem, a system for guaranteeing the right to choose art subjects needs to be provided and all matters by educational foundation and type shared for cooperation.