Dewi V. Correlation Between Mastery of Music Theory, Solfegio, and Profiency in Playing Primary Music Insrument at The Intermediate Level in Music Program, Universitas Negeri Surabaya. jsm [Internet]. 30Jun.2023 [cited 22Nov.2024];12(1):153-64. Available from: https://journal.unnes.ac.id/sju/jsm/article/view/66054