Invitation Letter to Choir - On behalf of the leadership here at (name of church), I wanted to take this opportunity to invite you and your Choir. I wanted to extend to you an official invitation to join the.Waupaca Community Chorus for what promises to be an enjoyable and memorable 57th. Concert. The document is a letter inviting singers to participate in a choir festival being held on February 7th in Tallahassee, Florida. You may not have to complete a formal application at all. If you do have to fill out an application though, search for write letter on Quora. I am sending you this letter as a formal invitation to be a part of our praise and worship session that will be held during our Church Usher's Day. Invitation to Join the Saint Alphonsus Junior Choir. For new or existing residents of any community, it can be encouraging and interesting to receive an invitation to a church in the area. The choir will be singing at every First.