Complex sentence: In addition to her own groups, Eade also performed contemporary classical music and was a featured soloist with Boston Musica Viva, Composers in Red Sneakers, NuClassix and jazz big bands Orange Then Blue and the Either/Orchestra.
Split into simpler sentences: In addition to jazz, she also performed contemporary classical music, and sang solos with Boston Musica Viva, Composers in Red Sneakers, NuClassix. She also performed with jazz big bands Orange Then Blue and the Either/Orchestra.