Complex sentence: The duo disbanded in 1980, and both members went on to become public advocates of the Bahá'í Faith but reunited briefly from 1991--1992 and once again in 2004, when they released their final album, Traces.
Split into simpler sentences: The duo disbanded in 1980, and both members went on to become public advocates of the Bahá'í Faith. They reunited briefly from 1991--1992 and again in 2004, when they released their final album, Traces.