To browse the shelves for hymns and hymnology at the Langston Hughes Library, use these guidelines:
Hymnary.org--Hymnary.org is an online hymn and worship music database for worship leaders, hymnologists, and amateur hymn lovers. At Hymnary.org you can search or browse hymns by title, tune, meter, key, scripture reference, and more.
Center for Church Music--"Through edification and education, we seek to assist the church--pastors, music directors and key laypeople-- in maintaining fidelity to its biblical and historical heritage of music. Bringing together congregational singing and choral and instrumental music, our desire is to build new awareness and excitement for church music in general and the singing of hymns in particular (mission statement)".
JSTOR--Interdisciplinary but heavy emphasis in the humanities (including music). JSTOR includes only full-text articles from peer-reviewed journals. Many journals in JSTOR go back to the early 1900s (and some well into the 1800s), but recent issues (past 3-5 years) are not covered.
Concordia--Publisher for the Lutheran Church-Missouri Synod
J.W. Pepper is based in Exton, Chester County PA, and has retail locations nationwide, providing sheet music, recordings, and performance aids for everyone from the student to the professional.
GIA--Based in Chicago, this publisher not only publishes sacred choral literature, hymnals, and worship aids, but an extensive catalog of materials for K-12 music education.
OCP--Oregon Catholic Press publishes widely used hymns, hymnals, and supplemental materials in the Roman Catholic tradition.
Gospel Music Association--Sponsor of the DOVE awards, this Nashville-based organization is an advocacy group providing resources and support for gospel musicians of all kinds.
National Association of Pastoral Musicians--based in Silver Spring MD, this is an advocacy group providing resources for sacred musicians working in the Catholic tradition
Copyright laws, in a nutshell from the U.S. Copyright Office
"Fair Use" says that "any copying of copyrighted material done for a limited and “transformative” purpose, such as to comment upon, criticize, or parody a copyrighted work...can be done without permission from the copyright owner (Stanford University Libraries, 2017)". Look here for more detail.