On mobile, tablet or computer, listen to multiple music channels scientifically optimized to increase concentration and productivity. Customize intensity of timed sessions to match your cognitive type and mood. Use their Productivity Tracker to record your productivity and customize your sound sessions. Find out what types of music and energy level settings keep you most focused and productive so you can personalize for your cognitive type and biorhythms. This will be added to Entrepreneurial Resources Subject Tracer™. This will be added to Student Research Resources Subject Tracer™. This will be added to the tools section of Research Resources Subject Tracer™.