@book { MusicTheoryanditsMethods,
    title = "Music Theory and its Methods",
    author = "Denis {Collins}",
    year = "2013",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-02906-2",
    url = "https://www.peterlang.com/document/1045699"
}