Smart clean delete all my music

A

AC Question

Hi there.
When i use smart clean on my LG G3 i lose all downloaded music. When i go into download folder all my music is there. When i clean, it deletes my music from my phone. Do i have to save my downloaded music somewhere first before i do a smart clean. If so, how do i do it?
Sorry, im very dumb when it comes to android phones 😋
Ps. Download folder only shows music. No other downloaded things like games etc.