Good Article rebutting Exclusive Psalmody

Exclusive Psalmody or New Covenant Hymnody? by Lee Irons - very well written and reasoned. I wish he had inlcuded this rationale, though:

In terms of the RPW:

P1 New covenant believers are commanded to sing and to be taught by the Psalms (Ephesians 5:19, Colossians 3:16)
P2 The Psalms teach that we should sing a new song to the Lord (verses here)

C1 New covenant believers are commanded to sing new songs and the Psalms to the Lord