Music teacher Sakira Ventura has created an excellent new tool that encompasses more than 500 women who are often forgotten in the classical music world, from Mozart's sister to Byzantine abbess Kassia born in 810. The tool is "pushing back against the sexism, stigmatisation and societal norms that have long rendered them invisible", the Guardian insists. Great stuff!

The English pop-rock band have pledged to no longer play festivals that have too few female artists on the bill. Singer Matty Healy made the promise to Guardian journalist after this year's Reading and Leeds festivals were criticised for a gender imbalance. Only 20 of the 91 acts on the initial line-up are women, which made the journalist ask Healy to promise not to play festivals with far too few women, to which he agreed saying "people need to act, not chat".