Listen to Enigma 2 and Enigma 1. The rest you can ignore. Enigma 3 is a copy of Enigma 2, Enigma 4 uses Carl Orff samples, which has been done a million times. Enigma 5 has, like most of the later albums, too much Cretu vocals. If you have listened to those albums and you like it, get these Delerium...