The article presents the assumptions and goals of the international project HarMA+ European Landscape of Teaching Practices and Pedagogical Innovation in HMEI’s — Harmony and Music Analysis Fields (2020–2023). It is implemented under Erasmus+ Key Action 2 (Cooperation for innovation and the exchange of good practices): Strategic Partnerships for higher education, ID Reference: 2020-1-BE01-KA203-074897. The cooperating partners are: Conservatoire royal de Bruxelles, Belgium (leader of the project); Akademia Muzyczna im. Stanisława Moniuszki, Gdańsk, Poland; Liszt Ferenc Zeneművészeti Egyetem, Budapest, Hungary; Hochschule für Musik und Theater „Felix Mendelssohn Bartholdy” Leipzig, German. The four main intellectual outputs of the project are planned: European digital platform; European dynamic bibliography; A repository of courses’ descriptions, a multilingual glossary of basic terms in music theory fields.