Serious question: Do you celebrate Christmas and Easter?
Lately I’ve been studying whether or not manmade holy days please the Lord. Most Christians I’ve discussed it with are shocked I think it’s even an issue. I don’t come down on your side of the instrument question, but I know it’s an issue and I respect your position.
Read the Psalms - David, as inspired by the Holy Spirit, writes repeatedly about using a number of different instruments to worship The Lord. We are to worship The Lord in all that we do, if a mechanic - it can be with your wrenches, a writer, with your pen, a musician, with your neutral instruments of melody. When any instrument becomes a distraction by your ignorance, then you modify to not be a distraction. If you purposely use any instrument to bring glory to yourself instead - then it is wrong. Doesn’t matter if it’s the ‘voice’ you were born with.