Complex sentence: Together, Noble and the Nordic Choir cultivated arguably one of the most honored choral traditions in the United States, eventually adding six choirs to the music program to accommodate the growing interest in choral music and voice at Luther.
Split into simpler sentences: Together, Noble and the Nordic Choir cultivated one of the most honored choral traditions in the United States. Eventually six choirs were added to the music program to accommodate the growing interest in choral music and voice at Luther.