When did churches start using instrumental music?

http://www.christianitytoday.com/history/features/ask/2001/nov30.html

[ChristianityToday.com] January 25, 2005--Though we know that early Christians sang during worship, they probably used no instruments. Nearly all of the backgrounds from which early Christians came-Jewish, Greek, Roman, Egyptian, and more-had instrumental traditions, but these traditions carried negative associations. Most church fathers saw the use of instruments in Jewish worship as a "childish" weakness, less glorifying to God than words of praise. In pagan worship, instrumental music and debauchery were often linked, as this fourth-century manuscript suggests....