A melodious singer is someone who sings with a beautiful, harmonious sound. The term can refer to two different types of singers: a WREN (4 letters) and a skylark (7 letters). A WREN is a small, brown bird that is known for its melodic song. A skylark is a species of lark that is found in Europe and Asia and is also known for its melodious singing. Both the WREN and the skylark are popular symbols of joy and happiness in literature and music.