1. Aldoshina, I., Pritts, R.: Musical acoustics. Publishing House “Composer”, St.-Petersburg (2006). (in Russian)
2. Aranovsky, M.: Musical text: structure and features. Publishing house “Composer”, Moscow (1998). (in Russia)
3. Bonfeld, M.: Music: Language. Speech. Thinking. Experience of system research for musical arts. Publishing House “Composer”, St.-Petersburg (2006). (in Russian)
4. Crystal, D.: A Dictionary of Linguistics and Phonetics, 6th edn. Blackwell Publishing, Hoboken (2009)
5. Crystal, D.: Die Cambridge Enzyklopädie der Sprache. Campus Verlag, Frankfurt/New York (1998)