An Online Tool for Semi-Automatically Annotating Music Scores for Optical Music Recognition - Stanislaw Graczyk; Zuzanna Piniarska; Mateusz Kalamoniak; Tomasz Lukaszewski; Ewa Lukasik (Proceedings of the 11th International Conference on Digital Libraries for Musicology, DLfM 2024, Stellenbosch, South Africa, 27 June 2024, 2024)