Alliance of Confessing Evangelicals: Reforming Church Music: Article advocating songs based on Biblical revelation and "recounting the drama of redemption."
Anti-Instrumental Music in the Worship of God: 8 books, article, reviews (Reformed Presbyterian perspective)
Christian Rock: Blessing or Blasphemy?: Article favoring the latter.
In Support of the Regulative Principle of Worship: A critique of Steven Schlissel's,'All I Need to Know About Worship, I don't Learn from the Regulative Principle.' by G.I. Williamson
John Calvin: Preface to the Psalter:
Psalms and Hymns and Spiritual Songs: Article from Machray Review, criticizing attempts to edit classic hymns for "inclusive language", and to replace traditional Anglican liturgical music with pop formats.
Reformation Worship, the Regulative Principle, Iconoclasm: Resources on Biblical worship. Covers Psalm singing, the use of musical instruments, and answers recent attacks against the regulative principle of worship.
The Worship of God: Many articles on reformed worship. Authors include Thomas Boston, Jonathan Edwards, Charles Hodge, John Murray, and G.I. Williamson. From the Presbyterian Reformed Church
What shall we Sing?: Article advocating more thoughtful hymns.