What type of material does series A/1 of the Repertoire International des Sources Musicales include?

Series A/1 of the Repertoire International des Sources Musicales primarily focuses on printed music arranged by composer. This series is dedicated to cataloging and providing detailed information about the works of composers and includes essential data regarding their compositions. By emphasizing printed music, it serves as a reference for music educators, performers, and researchers who are looking for specific scores or arrangements created by various composers. The resources within this series enable users to access a wealth of notated music, which is fundamental for educational and performance purposes in the field of music.