[aMorePerfectUnion]

“But how do you know that those instruments result in a joyful noise? Show me exactly in scripture where it says that those instruments qualify as joyful-noise makers.”

There are no commands to play specific instruments. Only a command to worship with joy. Joyful noise evaluated by God, as was David’s dancing before the Lord. None of the specifics is a doctrine. Joyful worship is commanded.

[Wyrd bið ful aræd]

The Psalms mention timbrels and flutes and lyres quite a bit. "Praise Him with trumpet sound; Praise Him with harp and lyre," says Psalm 150, for example. Horns are also mentioned. Maybe you should stick with those, rather than using extra-Biblical instruments.

Show me where in Scripture it is stated that you can use whatever instruments you want.