For the revised Trinity Hymnal (1990, non-Baptist edition), they have MIDI files of the tunes and MP3 files of organ accompaniment.
For the Trinity Hymnal (Baptist edition), they have information on Worship with Hymns, a set of 4 audio CDs available for purchase which have the piano accompaniment to 100 hymns.
(We have a set.)
Articles such as Learning and Loving the Trinity Psalter and The History of Psalm Singing in the Christian Church at his church's Articles page at http://www.ipcsav.org/resources/articles/.
A description of his book, The Family Worship Book : A Resource Book For Family Devotions at http://www.ipcsav.org/resources/books/book/the-family-worship-book.
His book includes an explanation of the Christian Sabbath, a Family Bible Reading Record, the Catechism for Young Children ("An Introduction to the Shorter Cathechism"), the Westminster Shorter Catechism, 50 Bible Memorization passages, a condensed version of Isaac Watts' A Guide to Prayer, Thomas Manton's Epistle to the Reader of the WCF and Larger & Shorter Catechisms, The Church of Scotland's Directory for Family Worship, and the text (words) to 60 selections from each of the Trinity Hymnal and Trinity Psalter.
I had borrowed a copy of it from the library and thought it might be a good way to introduce someone to the Lord's Day, Family Worship and/or Psalm Singing.