I’m not arguing with that. Just pointing out the rationale for a Christian finding his/her belief and practice in the New Testament rather than the Old. One does not find teaching or example in the NT for using musical instruments. That is why there is no example in history for any Christians using instruments until about 600 yrs after the beginning of the church. Most churches of Christ sing “acapella” which loosly translates “in the style of the church or chapel.”
I was listening to a CofC radio question and answer program years ago when an old man called in and raised a commotion because his CofC church choir started their singing with someone blowing a pitch pipe. He went ballistic on this “music in the church” and ranted on and on about it.
This is typical of taking irrelevant things and making them major doctrines in so called Restoration churches.