Old Testament musicians (including Asaph, Heman, and Jeduthun) were viewed as prophets (seers), as prophesying; were writers of some of the 150 psalms. Almost half of scripture is in poetic form, yet pastors often view poetic form as a hindrance to meaning.
Is this the most important chapter in my book, The New Worship? Newer translations and recent scholarly papers are adopting the viewpoint expressed here, that Col 3:16 contains instrumental clauses. Psalms, hymns, and songs from the Spirit are “a means” by which the word (message) of Christ dwells richly among us. Our songs should teach & admonish, says Paul. Also be sure to consider the implications of Colossians 1:28. Many issues to consider here!