Complex sentence: Between 1994 and 1998 she was a principal soloist with the world-renowned Irish chamber choir Anúna, and subsequently toured the United States as a soloist with the RTÉ Concert Orchestra.
Split into simpler sentences: Between 1994 and 1998 she was a principal soloist with the world-renowned Irish chamber choir Anúna. She subsequently toured the United States as a soloist with the RTÉ Concert Orchestra.