See here: http://musicasacra.com/st-agnes/.
"The Church Music Association of America will hold a conference
exploring renewal movements within the Church’s liturgy and sacred music
on October 13–15, 2013, at the Church of St. Agnes and Cathedral of St.
Paul in St. Paul, Minnesota. The conference marks the 40th
anniversary of the residence of the Twin Cities Catholic Chorale,
founded by Msgr. Richard J. Schuler, at the Church of St. Agnes in St.
Paul. The conference seeks to explore, through critical analysis,
former and present efforts to revive the Church’s sacred liturgy and
music, particularly as exemplified by Msgr. Schuler’s work."