Complex sentence: Fripp instead used only two Hall vocals on his album, substituting Peter Hammill and Terre Roche in various places; ergo the trilogy did not appear quite as intended, although all three albums eventually appeared in the marketplace.
Split into simpler sentences: Fripp instead used only two Hall vocals on his album, substituting Peter Hammill and Terre Roche in various places. The trilogy did not appear quite as intended, although all three albums eventually appeared in the marketplace.