My point was that mechanical instruments of music are not necessarily implied in the use of the word psalm. In the command, we are told specifically to sing. You stated that the use of the word psalmos causes mechanical instruments of music to be commanded. That is not the case.
I didn't say that. I said that psalm 150 specifically "commands" the use of mechanical instruments. It would be hypocritical to insist that we sing "psalms" and yet forbid doing what the psalms tell us to do.
Gee, and I thought we had reached an agreement that musical instruments were optional.
Since the Bible clearly does not prohibit their use, what denomination teaches that they are forbidden? What denomination do you belong to?