No single source is objective, even if it claims to be objective or is written in an objective or authoritative style. All sources have a point of view whether or not that POV is obvious at first glance. It is up to you, the reader, to determine that point of view.
Digital Resources for Musicology
Scholarly Music Research Journals on the Web (free access)--from University of Richmond
Open Access Research Journals --from the University of Michigan
Music Research Resources Online--from UCLA (Resources without the key icon are available to you)
Open Access Button--Add a button to your browser that alerts you to open access content or how to get it.
Unpaywall--Similar to Open Access Button