Even in the case of lifeless instruments, such as the flute or harp, how will anyone recognize the tune they are playing unless the notes are distinct?
Textus Receptus (TR) - 1 Corinthians 14:7 >Ὅμως τὰ ἄψυχα φωνὴν διδόντα, εἴτε αὐλός, εἴτε κιθάρα, ἐὰν διαστολὴν τοῖς φθόγγοις μὴ δῷ, πῶς γνωσθήσεται τὸ αὐλούμενον ἢ τὸ κιθαριζόμενον;