Context: A strong and prominent a cappella tradition was begun in the midwest part of the United States in 1911 by F. Melius Christiansen, a music faculty member at St. Olaf College in Northfield, Minnesota. The St. Olaf College Choir was established as an outgrowth of the local St. John's Lutheran Church, where Christiansen was organist and the choir was composed, at least partially, of students from the nearby St. Olaf campus. The success of the ensemble was emulated by other regional conductors, and a rich tradition of a cappella choral music was born in the region at colleges like Concordia College (Moorhead, Minnesota), Augustana College (Rock Island, Illinois), Wartburg College (Waverly, Iowa), Luther College (Decorah, Iowa), Gustavus Adolphus College (St. Peter, Minnesota), Augustana College (Sioux Falls, South Dakota), and Augsburg College (Minneapolis, Minnesota). The choirs typically range from 40 to 80 singers and are recognized for their efforts to perfect blend, intonation, phrasing and pitch in a large choral setting.

Question: When did a cappella begin to take hold in the United States?
Answer: 1911

Question: What was the name of the choir F. Mellus Christiansen used?
Answer: The St. Olaf College Choir

Question: How many singers are typically in the choirs?
Answer: 40 to 80

Question: Who did the St. Olaf Choir influence?
Answer: other regional conductors

Question: What tradition was started in the western US?
Answer: Unanswerable

Question: Who spoke against a cappella in 1911?
Answer: Unanswerable

Question: What was emulated by other conductors across the country?
Answer: Unanswerable

Question: What do a capella choirs struggle to perfect in a large choral setting?
Answer: Unanswerable

Question: Who started a prominent choir in 1911?
Answer: Unanswerable

Question: At what college was F. Melius Christiansen a student?
Answer: Unanswerable

Question: What church was Augsburg College connected to?
Answer: Unanswerable

Question: Who did Wartburg College influence?
Answer: Unanswerable

Question: How many singers are in a cappella?
Answer: Unanswerable