"However, it is erroneous to claim that we can use worship practices under the Old Law as examples of authority for their use in the church.
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It is equally erroneous to take two verses from one of Paul's letters and state that musical instruments should not be used in worship. Nowhere did Paul write any such thing. Indeed, no prohibition on instruments appears anywhere in the New Testament.
Christian doctrine is not that what is not specifically permitted is not allowed. Paul encourages singing in worship. He does not prohibit the addition of instruments.
Your doctrine on this issue is too narrow...by far.
Let me ask you a question. If I were to suggest that we add a hamburger and a shake to the Lord's supper, what would you say?