1. Two groups to be mentioned together, as behind their names hid, for contractual reasons, the musicians from Nuova Idea. But surely the mastermind behind them was composer Gian Piero Reverberi, who was also the producer of Le Orme and wrote most of the tracks on these albums under the nickname Ninety. Like Planetarium, Blue Phantom or Fourth Sensation these were Italian groups whose members were never listed on the covers. The Underground Set were often thought to be an English group