Effective period / Period of releases: 1983 - 1994

Members: Reynaldo Rana Jr., Paulo Eduardo Naddeo, Fernando Costa (7), Segis C. Rodrigues, Marcos G. Rosset

A Brazilian band formed at the beginning of the 80s, Quantum remained together for two years only. Anyway, it was long enough for them to release their namesake debut album in 1983, which sold more than 6,000 copies. Their style was clearly influenced by Camel and Hackett-era Genesis with added elements of jazzy nature, which provided some peculiar swing to the overall symphonic sound. The 1993 CD re-released edition included a bonus track recorded before their break-up with a different bass player. This bonus track, "Presságio", was actually part of the repertoire of a second album that would never get to be released. Or so it seems, since rumor has it that an actual Quantum second album from that era has been briefly circulating among collectors and fans in cassette format. But a definitely real second Quantum offering went to see the light of day in 1994, when the group reformed and recorded "Quantum II". The new line-up included two keyboardists and no guitarist.