The term 'Count on a Piano' is a reference to the jazz pianist and bandleader Count Basie (5 letters). Count Basie was an American jazz musician who led his own band, the Count Basie Orchestra, for almost 50 years. He was known for his distinctive style of swing music and for his collaborations with other jazz greats such as Billie Holiday and Lester Young. He was also a prolific composer, having written over 100 songs.