You can edit or delete the playlist by clicking the playlist to go the detail list screen.
1. Tap 'Edit' on the upper right to change to edit mode.
- Change the cover image: Tap the upper left cover image to change.
- Rename playlist: Tap the text next to the cover picture to change.
- Change order of playlist: Drag next to each list.
- Delete Song: Tap Red icon next to each list to display the Delete button and Tap Delete.
2. After you edit, tap Finish and it will eventually change.
Tap More button(3 dots icon) in the middle and tap 'Delete Playlist'.
Don't worry! Only the playlist will be deleted and the music files will not be deleted.