The Rev. Murray Hanson, of Third Presbyterian Church in Rockford, Ill., which owns and operates a low-power station, WTPB-FM, said the station’s fourth anniversary will be celebrated at 10:15 a.m. Sunday with an open house.

Hanson is a 1966 graduate of Albert Lea High School. Special music will be presented by Mike Williamson, who also is from Albert Lea.

Guests will also hear Rockford natives, Jason and Mary Wright, brother and sister recording team, on piano and violin.

The station streams at www.wtpblp.com.