Tim Challies is highlighting a free to download recording of The Church's One Foundation.

http://www.challies.com/articles/hymn-stories-the-churchs-one-foundation-free-download

His introduction spells out how important hymns are to the Church, and especially as a means of teaching. He selects Exodus 15 as an example of this latter point, which is curious. The songs of Scripture, namely the Psalms, are designed (according to the Holy Scriptures) to record, thank and praise (see Rev. Romaine's Hymns Most Perfect for more information). They are not designed to teach. That might be a side effect, but it is not the purpose of songs. The song in Exodus 15 records, thanks and offers praise. It is a proclamation relating to the specific experiences of the Children of Israel - not a homeschooling sing-song to let the kids know what is going on and why.