does quick start transfer all my music to a new iphone

Hey Garfieldthecat,

Thanks for that additional information.

Going forward, we do want to let you know that music would not be transferred using Quick Start. Music that was purchased from the iTunes Store would need to be redownloaded after setting your iPhone back up, while music that was synced from iTunes or Finder on a Mac, can be resynced after completing the set up.

For help with redownloading your music if purchased from the iTunes Store, check out this link here: Redownload music

Redownload music in the iTunes Store app on your iPhone, iPad, or iPod touch

1. Open the iTunes Store app.

* On your iPhone or iPod touch: At the bottom of your screen, tap More , then tap Purchased. 

* On your iPad: Tap Purchased.

2. Tap Music. If you use Family Sharing, tap a family member’s name to see music that they purchased.

3. Find the music that you want to redownload, then tap it.

4. Tap the download button  next to a song or album.

Don't see the music that you purchased?

We hope that's able to help.

Best regards.

Hello Garfieldthecat,

Apple Music contains your content within the Apple servers. So you need to log in with the same Apple ID used when you joined Apple Music, as described here: Join Apple Music on your iPhone, iPad, iPod touch, Mac, or PC - Apple Support

Once signed in, your information should be available.

Cheers!