Complex sentence: In 1981, King Crimson reformed with a change in musical direction which lasted for three years, resulting in the trio of albums "Discipline" (1981), "Beat" (1982), and "Three of a Perfect Pair" (1984).
Split into simpler sentences: In 1981, King Crimson reformed with a change in musical direction which lasted for three years. The result was "Discipline" (1981), "Beat" (1982), and "Three of a Perfect Pair" (1984).