A job analysis was conducted to define the content domain important for newly licensed (certified) music teachers to perform their jobs in a competent manner. The results of the job analysis will be used to develop test specifications for the subject assessment in music of the Praxis Series: Professional Assessments for Beginning Teachers®. An initial draft domain of knowledge statements was constructed by Educational Testing Service (ETS) test development staff with subject-matter expertise in music and ETS research staff with expertise in job analysis methodology. This draft domain was then reviewed by an external review panel of 10 subject- matter experts: five classroom teachers, four college faculty, and one state administrator. This revised draft domain was then reviewed by an advisory committee of three classroom music teachers and six college faculty. This revised domain was then subjected to verification/refutation through a national survey of 843 teachers, 408 college faculty, and 102 school administrators. The survey participants were asked to rate the domain statements in terms of their importance for newly licensed (certified) music teachers to perform their jobs in a competent manner. Data were also collected regarding the emphasis that should be given in the test to each of the five major content areas. The results supported the adequacy of the defined content domain.