LDS.org: All General Conference Talks on Music
LDS.org: Gospel Topics: "Music"
LDS.org: Resources for Children about Music
LDS.org: Church Music Site (sheet music, mp3 downloads, etc.)
“Inspiring Music—Worthy Thoughts,” - Boyd K. Packer
"Reverence Invites Revelation" - Boyd K. Packer
"The Nourishing Power of Hymns" - Jay E. Jensen
"Worship Through Music" - Dallin H. Oaks
Favorite Hymns of the Prophets
"First Presidency Preface to Hymn Book"
Lost Hymns Project
Quotes from LDS General Authorities - Lost Hymns Project (PDF)
Quotes (LDS Daily WOOL)
LDS.org: Music Quotes
"Power and Protection Provided by Worthy Music" - Russell M. Nelson
"The Arts and the Spirit of the Lord" - Boyd K. Packer
"Your Refined Heavenly Home" - Douglas L. Callister
Real Singing -- Edgar Guest
"A Closer Look at Popular Music" - Lex de Azevedo - Ensign
Link to Meridian Magazine articles about Music
"Music in the Church" - Ensign
"The Power of Hymns" - Merrill Bateman - Ensign
"Worship the Lord by Singing Hymns" - Ensign
"Some Music Can Hurt You"
"How can I use Church Music to learn about the plan of salvation?"
Appreciating Music (PDF)
Music (DeseretBook/LDSLiving) (PDF)
"Music" (FHE Resource Book at lds.org)
Music and Dancing
Music of the Gospel
"The Parable of the Marinade" - John Bytheway (excellent)