Aleksandrovna Martynova, Y., Yevgenyevich Martynov, D., Mikhailovna Sukhova, A., y Aivazovna Nurgalieva, L. (2021). Vocal Education in Kazan: From Amateur Music Playing to Professional Training. PropĆ³sitos Y Representaciones, 9(SPE2), e1075. https://doi.org/10.20511/pyr2021.v9n1.1075