His primary instrument was the piano .
( August 31 , 1930 -- March 3 , 2010 ) was an American musician who appeared on The Lawrence Welk Show from 1955 to 1959 .
musician 's primary instrument was the piano .
( August 31 , 1930 -- March 3 , 2010 ) was an American musician who appeared on The Lawrence Welk Show from 1955 to 1959 .