iTunes M4A is the type we share on singlem4a.com. It comes with right cover & lyrics, purchased AAC. Maybe it’s single purchased or edited single. Some of old singles are deleted from iTunes Store, that’s why we have to get those songs from album and edit them.
Assuring all singles on singlem4a.com is iTunes Purchased with Single Cover & Lyrics
This is a single preview from iTunes
View all singles in iTunes
Listen to singles in Foobar2000