Myra Hess was a British pianist and composer who was known for her performances of classical music. She was also a keyboardist, which is why she is featured in the crossword puzzle as KEYBOARDIST MYRA. Hess was born in London in 1888 and began studying the piano at the age of five. She went on to become one of the most influential pianists of the 20th century, performing in concerts around the world. Her career spanned over six decades, and she was awarded the Commander of the Order of the British Empire in 1935. Hess passed away in 1965, but her legacy lives on through her music.