The title 'More Mayhem' suggests that this is a second album in the same vein as 'Mayhem', but it's just the same album with a couple of extra tracks. This is really misleading and quite annoying.
Don't buy if you already have Mayhem. If you don't, buy this instead, as it does have some extras.
Will be buying one of her other albums and check the track list to ensure it's not just a bunch of dupes.
That said, Mayhem is a fantastic album that I play endlessly. If you like that retro, rockabilly, double bass sound and songs to dance to, then this album is a must buy.