Please its urgent, i'm going to buy iphone tomorrow, please tell

Please tell there's app "free mp3 downloader" in which we can download free music from free sites, please tell how many songs can be downloaded & saved in that app, and please tell can we play those downloaded songs without internet connection offline in that app when we want to listen?

Why is this urgent?

just download them off your laptop/destop and put them on your iphone

No it's not impossible just search itube in the App Store and it'll be this coulorfull looking app and then download it. When you get it search the songs you want then click on it and click the star to add it to your list

Hurry makes worry