Horizon (also known as Starwatchers and Sun Ra in Egypt Vol.2) contains a big chunk of the now legendary Balloon Theatre concert (it burned down soon after their visit, as did the hotel in which the Arkestra stayed while they were in Cairo). The Balloon extract is an uncut block (tracks 1- 4 on the CD, side 1 of the LP) and features a lot of Sun Ra's all-hell-let-loose Moog soloing, as well as a great version of Discipline 2. The rest of Horizon is from the Heliopolis concert, kicking off with an instrumental version of Enlightment and Love in Outer Space (neither are on the original LP) segueing slowly into Space is the Place - followed by drum orchestra, more Ra soloing on Moog, Tiger Organ and detuned piano (bloops, hoovering, whistles, concords taking off) leading to a first lurching, then wild, Discipline 8. Two bonus tracks, for the first time restored from the original concert, follow: We'll Wait for You (with June Tyson) and The Satellites are Spinning - which ends in full-on percussion. A classic recording of a classic band in great form.