Try searching journal databases. Here are links to the most useful multidisciplinary collections
which may contain articles relevant to research in Music
Searching for songs etc...?
Songs & short compositions may be compiled in an anthology, cd or score. To search contents lists, search Newcat+ for the song/work title. Select books then add song/work title. Limit your results by format e.g compact disc or music score.
Music is catalogued in many languages
Search Newcat+ for the word root followed by an asterisk e.g. sonat* finds: sonata, sonate, sonaten, sonatina, sonatas...
This is called truncation.