Third instalment for this distinguished Indonesian Synth-Prog supergroup, "Rasio & Misteri" (1990) came five years after the second album, "Produk Jingga". It sees the return of Fariz RM in the lineup. The album made waves in the landscape of early 90's popular sounds in Indonesia, inspiring several bands to emerge in that decade, and helping to shape some more adventurous soundscape developments to come.