Jay Guin, like all of the pro-instrumentalists, are left with the Monarchy or kingdoms period which was not based on the Law of Moses.
It seems hopless that so many highly-educated men keep quoting Old Testament verses and believe that if we can find David playing a harp somewhere--never in a tabernacle- they wre worshiping with instrumental music. Even if these events are solitary and separated by centuries there is some "spirit" that wants to use this for imposing instruments in the church which is A School of the Word of Christ (only)
Here is some background from his view that if people worshiped God with instruments before or outside of the temple, then the normal preacherling appeal to a "changed law" pattern is no longer valid.
However, most of we who have not been discorded by music, understand that neither king, kingdom, temple or sacrificial system was commanded by God. You can quote absolute statements all day long and there is a fixation that "God commanded musical worship under the OLD law but we live under a NEW law which did not command instruments." My guess is that you cannot find half a dozen preachers who have not missed that simple fact if they obeyed the direct command to PREACH the Word by READING the Word as Paul commanded Timothy.
http://www.piney.com/Jay.Guin.Instrumen ... ament.html
(2Sa 6:5 ESV) 5 And David and all the house of Israel were making merry before the LORD, with songs and lyres and harps and tambourines and castanets and cymbals.
David was causing a large body of people and not just those of the tribe of Levi to "MAKE MERRY" which is the same rising up to PLAY performed at Mount Sinai. This was a sin beyond redemption and God abandoned them to their lusted after 'worship of the STARS."
I believe this is a cold, calculated way to separate people based on the MARKS. It is the confession of John's prophecy in Revelation 17-18.