en_tn_condensed/dan/03/10.md

the horns, flutes ... and pipes

These are musical instruments. See how you translated these words in Daniel 3:5.

fall down

Here "fall down" means "quickly lie down"

prostrate himself to

The people would do this to worship the statue. Alternate translation: "stretch himself out on the ground face down in worship of" (See: rc://en/ta/man/translate/translate-symaction)