En lo que yo conozco sobre estudios de etnomusicologia en España,normalmente se ha estudiado las canciones ,sus letras y variantes pero no se han hecho estudios importantes relacionados con literatura o incluso historia u otros aspectos de tipo social.No se si he podido ayudarte en algo . 

My field is History of technology in the study of musical instruments.

A good read :

Susan McClary, Feminine endings : Music, gender, sexuality, University of Minnesota Press, 1991.

traduit en français :

"Ouverture féministe: musique, genre, sexualité", La rue musicale, Philharmonie de Paris/Cité de la musique, 2015.

Thank you, Ivo and Anne - two good leads to follow up.  I've read Susan McClary before, I think, but not this one.

Also :

Jonathan Sterne, "The Audible Past. Cultural origins of sound reproduction", Duke University Press, Durham, 2003.

Jonathan Sterne,"The Sound Studies Reader", Routledge, London and New York, 2012.

You can read my master thesis' bibliography, maybe you'll find something useful... I applied semiotics, cultural history and musicology to develop an approach to historize through music, but it has a literary theory approach, mostly the first two chapters: "Construcción de identidad. Una aproximación desde el paisaje sonoro mexicano" https://www.dropbox.com/s/belv9bg5bwvr13n/Woodside%2C%20Juli%C3%A1n%20-%20%28M%29%20Construcci%C3%B3n%20de%20identidad.%20Una%20aproximaci%C3%B3n%20desde%20el%20paisaje%20sonoro%20mexicano.pdf?dl=0

There is also the exemplary :

"Harmonious Triads - Physicists, Musicians, and Instrument Makers in Nineteenth-Century Germany" by Myles W. Jackson

and  "Altered Sensations - Rudolph Koenig’s Acoustical Workshop in Nineteenth-Century Paris"

by David Pantalony

 Dear Karen, 

I am historian and musicologist and have written a theoretical paper about musical significance, production of musical knowledge and its determinations. It was published at El Oído Pensante. you will find it at:

 ppct.caicyt.gov.ar/index.php/oidopensante/article/download/4103/3761

Hope it can help you, although I dont examine your specific subject.

In Brazil there are a large field of mutual dialogue between musicologists and historians of music, specially dealing with popular music.

Regards from Rio.

Yes. you can find one of my chapter useful for your work. cultural clash: tawaif to kasbi chpter-7 in A Struggle for Identity Muslim Women in United Province, Cambridge University Press under Foundation, 2014