Complex sentence: Led for nearly fifty years by Paul J. Christiansen and for over twenty years by renowned conductor and composer René Clausen, the choir has long been regarded as one of the top a cappella choirs in the world.
Split into simpler sentences: Led for nearly fifty years by Paul J. Christiansen and for over twenty years by renowned conductor and composer René Clausen. The choir has long been regarded as one of the top a cappella choirs in the world.