Did you know that you can listen to music from LDS General Conference back to 2008 by clicking on “Show Music” at the top of each page in the conference section on LDS.org (gc.lds.org)?
You can also access an index of general conference music at GCmusic.lds.org. You can search across multiple archives and conferences. The music can be streamed or downloaded. The collection includes hymns sung by the Mormon Tabernacle Choir and other choirs at general conference. The archive goes back over 10 years, and more music is being added all the time.
For more references to conference archives, see Archives of LDS General Conference.