Q: Removing music

Hello there, Shania_733.

It sounds like you're trying to remove music from your iPhone 6. The following Knowledge Base article offers up some great instruction on how to accomplish that:

Delete music, movies, apps, and other content from your iPhone, iPad, or iPod touch

Delete music

Remove songs, albums, or playlists in the Music app. Delete all music in Settings.

Remove songs, albums, or playlists from the Music app

1. Tap the More Options icon  on the right side of the screen.
2. Tap Delete.
   
3. When prompted, tap Delete Song to confirm.
    

Delete all music from your device

1. Go to Settings > General > Usage > Manage Storage. Then Tap Music.
2. Under Music, swipe left on All Songs.
   
3. Tap Delete.
    

 

If you’re an Apple Music member or iTunes Match subscriber, removing music from your iPhone, iPad, or iPod touch also removes it from your iCloud Music Library. If you delete music on one device, it also deletes from your other devices. Learn how to delete media from your iCloud Music Library.

On an iPhone, iPad, or iPod touch, if you don't make music available for offline use, it's cached using the space available on the device. The device will remove cache, and the cached music, as space is needed by the device.

Thanks for being a part of Apple Support Communities.

Cheers.