More than nine months in the works, MusE 4.0 is here with a completely revamped user interface that features a tabbed UI with docks supporting common utility editors like Event List, Marker List, and Mastertrack List, an all new dark theme with lots of icons in vector format, more customizable colors, as well as new toolbars to replace the separate transport window and make it easier to access common operations. The new release also introduces several new keyboard shortcuts to make your workflow faster if you fancy using your keyboard when creating music, and adds support for listing related keyboard shortcut in menu operations.