The main focus is not on the linguistic perspective, but I would suggest to have a look at the "Musical training shapes neural responses to melodic and prosodic expectation" (Zioga, I., Di Bernardi Luft, C., & Bhattacharya, J., 2016).
thanks for your attention, I know that there is way more books and essays about music from a scientific point of view, but as a language student I have to focus my thesis on a linguistic perspective.
Couple of years ago I visited this summer school: http://nyi.spb.ru/ and they had a full course on music and language, taught by John Frederick Bailyn.
Please take a look at at his chapter:
"Language, Music, Fire, and Chess: Remarks on Music Evolution and Acquisition" (2015). In P. Eismont and N. Konstantinova (Eds.): Language, Music and Computation, Springer, CCIS 561: 27–44.
They had a seminar on that this year too: http://nyi.spb.ru/seminars/linguistics/linguistics_84.html
It depends on what your thesis is actually about. Is it a general theme? There is Don Haran's book on "Word-Tone Relations in Musical Thought", American Institute of Musicology, Hanssler-Verlag, 1986. This goes from antiquity to the 17th century. You may know that the composer Henry Purcell (1658/9-1695) was noted for his setting of English words. There are quite a lot of articles about this. For instance "Sound and Sense in Purcell's 'Single Songs' by Franklin B. Zimmerman (ref. illegible), Essays on Music by Alfred Einstein, Norton, NY, 1956, the chapter called "Words and Music"; "Words into Music", A Composer's Approach to the Text" by Edward T. Cone in Sound and Poetry ed. N. Frye, NY, 1957, and lots more. Of course the entire magazine Music & Letters is full of articles on the subject too.