rekordbox 5.0 is a track management application for club standard DJ equipment. It also has a DJ performance feature on a PC. A stress-free, minimalist design enables complicated functions required for various DJ styles with different types of music. The program-based atomic design adapts to various device capabilities and screen structure. The color palette is functional and easy to recognize even in a club or open-air music festival. Considering DJs' manners and required information, the UI is intuitive and speedy to operate in a solid and clean tone and manner, including minimized eye movement.