There is interplay among the lead instruments of flute, guitar and keyboard, which is used regularly for extended thematic development.
The pitch-shifting, distortion, and album's theme have led many listeners to assume that the voice-over is in a putative Martian language, but it's actually in Hungarian: "Megrepedt tükrök (Cracked mirrors) / Kormos acélfalak (Sooty steel walls) / Halott szeméthegyek (Dead piles of garbage) / És szennyes tavak (And polluted lakes) / Azt mondod, itt élt valaha az ember?
The song "Egészséges Optimizmus" ('Healthy Optimism') from the SOLARIS 1990 LP appears in several tracks on the later album Nostradamus: Próféciák könyve.
In June 2003, Attila Kollár said in an interview that the band is still active, and they will start working on a new studio album that year.
Following their studio albums and a live double CD recorded in 1995 during the Progfest in Los Angeles, the band also started a three-volume "Official Bootleg" series.