SALISBURY — The city of Salisbury and Rufty-Holmes Senior Center are teaming up on Sunday, April 28 at the Sounds of Spring Concert to gather information from the public to assist in devising the parks and recreation and senior center master plan that will involve vast improvements made to the Salisbury Civic Center. Anyone who wishes to contribute is encouraged to attend. The concert is taking place at Bell Tower Green starting at 3 p.m.