Delete all music
There is an easy way to delete all music
from the main settings
go to usage > show all programs, and then you will see the music app listed with the amount of data(space) its using, you click on that, then swipe and delete,... All music on the ipad is erased,
To delete individual songs you must do it from the actual music app. and only in song view, which sucks....
Also I noticed if you stream a song from the cloud (itunes MATCH) and not download from the cloud, (clicking on song name streams, clicking on cloud icon downloads) you cant delete the song, it remains on ipad hidden and only erases using the first method I mentioned,
I wish the music app was more straightforward....