Today I listened to all the albums up to, and including, Somewhere in Time. Tomorrow I'll carry on going. Which means soon I'll be hearing lots of, previously unheard, Maiden tracks.
I've had this long standing belief that, for me, only Iron Maiden, Killers and Seventh Son are devoid of filler tracks. The other albums being somewhere between 20 and 40 percent filler. I may have to revise that...