No, you can't expect the definitive Prog compilation from "Prog Rocks!", explained Jerry Ewing, editor of the British "Prog" magazine at the release of the first part of the "Prog Rocks!" compilation series. Logical, and therefore it was only logical to let further parts follow. In the meantime we have arrived at issue four and since then we have created a quite comprehensive overview of the history of the Prog. Following Universal's takeover of EMI in 2011, other label archives have also opened up for this sampler, and legends such as Van der Graaf Generator, Brand X, Camel, Gong, Ramases, Atlantis, Quintessence and Rare Bird have equal rights alongside Riverside, Ayreon, Bigelf, Haken and Devin Townshend. Fortunately, we again avoided choosing too predictable material, so that even "Prog Rocks! Volume Four" is a sampler to discover and rediscover in equal measure. And even though the price screw has been tightened in comparison to the first edition, this double CD can still be described as quite inexpensive with almost ten euros.