Clara Rowbotham/concert pianist in 1900/1920

Hi

Am new to this site, could anyone put me on the right track to find out information about Clara Rowbotham who lived in Washington Street, Birmingham in 1920s and apparently she was a pianist with, I presume, one of the music halls. They played before King George V at Buckingham Palace. Where and how would I find out where Clara played at and for and when they went to the palace?

Thanks

molly