van der Sandt, J., Schaumberger, H. ., Coppi , A. ., Salminen , S. ., & Wolf , M. . (2021). Singing is what we do (together) - redefining "together". A comparative study . Formazione & Insegnamento, 19(3), 028–054. https://doi.org/10.7346/-fei-XIX-03-21_03