Complex sentence: She notably portrayed the role of Lightfoot McClendon in the world premiere of Carlisle Floyd's "Cold Sassy Tree" at the Houston Grand Opera in 2000 and she has sung in the world premieres of several works by composer Michael Torke.
Split into simpler sentences: She notably portrayed the role of Lightfoot McClendon in the world premiere of Carlisle Floyd's "Cold Sassy Tree" at the Houston Grand Opera in 2000. She has also sung in the world premieres of several works by composer Michael Torke.