Scripture notes that:
One of the reasons for not having instrumental music according to Daniel Sommer was that the words to the song were not understandable. I think another reason was that it violated the simplicity of the worship.
These were not the reasons that most people gave after that time--that it was wrong because there was no mention of it in the New Testament (that is from Acts 2 through Jude).
If Sommer were to enter this discussion, he might reason from understandability and simplicity. Any change that made the words less understandable would be objected by him. Any attempt to make changes that were complex would be a step toward vanity.
The "progressives" love to pour out hate on Daniel because he refused to let the NEW BRICK CHURCH be stolen.
He went even further: even if you could prove that instruments were commanded something would be wrong with your "proof" because everyone know and plans to sow massive discord and MAKE THE LAMBS DUMB BEFORE THE SLAUGHTER because it is impossible to understand the TEXT you claim as teaching authority. It was singing as an ACT OF LITURGY rather than singing to TEACH "that which is written for our learning" which is defined as heretical (sectarian).
The instrumentalists tried to confiscate the New Brick Building at Sand Creek but the Illinois Supreme Court said NO: you have go go and buy your OWN building. MOST modern Christians allow both their coat and cloak to be confiscated and move on.
Esau gave up his birthright because of immediate hunger and lack of faith. He was the first short-sighted hedonist.
Church growth is chosen by some as the Bowl of Lentils. While importing "successful" church growth "geniuses" "far beyond their years in vision", they are also importing Trojan horses into the belief system of the local church.
Along with growth schemes, come the doctrines of work-less grace, God-selection of the saved, devaluation of human life, relegation of the church to second-status while attention is given to some future-realized Kingdom of 1000 years, and a host of other hidden subversions.
And all at the same time, use of the "growth geniuses" bring little growth, because they don't interface well with the history of the Churches of Christ. But the false doctrines that come along, they might just stick. . . .