Salvation Army Christmas bell ringer Donald Walsh, left, of Lewiston listens to Salvation Army volunteer Michael DeMatteo of Auburn play his favorite Christmas song, “What Child Is This,” on his cornet early Tuesday evening outside the Walmart store entrance in Mexico. DeMatteo, who calls himself the “Touring Trumpeteer,” said he enjoys volunteering his time “to spread the Christmas cheer” outside of stores in Androscoggin, Franklin and Oxford counties.