The luminous Maria Joao Pires has told concert managers that she will retire from touring and public performances during the course of next year.
The Portuguese-born pianist is 73 years old and has been on stage since she was five.
Her breakthrough came in Brussels, in 1970, winning the Beethoven Bicentennial Competition.
Reticent, modest and deeply spiritual, she will be sorely missed.
This is her most famous video, the day the orchestra started playing a concerto she had not prepared.