No Amplitude Sequel
In interview with GameCritics.com, Alex Rigopulos, co-founder and CEO of Harmonix, revealed that there are no current plans for a sequel to the Amplitude.
Amplitude was the sequel to Frequency, which was arguably the most original American music game ever designed. Players moved through a tunnel, hitting buttons in sync with music and on-screen indicators. Amplitude furthered the idea and used mainstream artists such as PiNK, No Doubt, Weezer, and David Bowie as a way to expand it's target audience. The game received critical reviews upon it's release, however, it did not sell nearly well enough to warrant a sequel.
Currently, Harmonix is involved with a project at Sony, however further details are unavailable at this time.
4/9/2004 Chris Faylor