after UFO made 3 albums with Michael Bolton on leadguitar, which differed in een bluesbased boogierock and strechted out spacerock,in came Michael Schenker, first on loan from the Scorpions, who moved the band in een much heavier direction. As is ample proved on the first collaboration "Phenomenon", which spawned 2 of the biggest rockanthems "Docter, Docter" and "Rock Bottom". Further albums saw the same musical line but where augmented by keyboards, which easied the heavyness somewhat and made the songs more melodic. This was continued till the livealbum "Strangers in the Night" after which Schenker left UFO to start a solocarriere. In fact the first albums with new singer Gary Barden where in the same vein as UFO, Barden is not very different from Phil Mogg and the music so far not all together very different from UFO. Which tells a lot about the role of Schenker while in UFO. This package offers the first two studioalbums whith Barden and also the long sought livedoublealbum "At the Budokan", which was only released in Japan originally. These are strong efforts and showcase the talent of the guitarplayer/songwriter an his penchant for composing solid rockers with a good melody. Strangly Barden was then replaced for "Assault Attack" by another GB, Graham Bonnet this time. The music on this album is more in the style of "Down to Earth" by Rainbow (from whom besides Bonnet, Don Airy and Cozy Powell has played in MSG at a time). A single B-side is as bonus included in the set. It does not really suits the guitarplaying from Schenker and after a liveshow that went down very badly Gary Barden returned to the microphone. With him the final MSG album "Build to Destroy" was recorded and also one of the final liveperformances, which all are included in this package, with a few extras (which is not always the case in the Crysalis Years compilations). So highly recommended for those who savour honest and melodic rock from the early eighties.