Groove Pizza is a circular rhythm app for creative music-making and learning! It's also a playful tool for creating grooves using math concepts like shapes, angles, and patterns. ... Over 100,000 Pizzas served in 159 countries to date! Groove Pizza is a circular rhythm app for creative music-making and learning! It’s also a playful tool for creating grooves using math concepts like shapes, angles, and patterns. Groove Pizza debuted at the Department of Education in April 2016 to the acclaim of The Washington PostUSA TodayJulian Lennon and many others. Over 100,000 Pizzas served in 159 countries to date! Start working with one of the "specials" pizza presets and add/remove "toppings" to adjust the groove, or click on the "Shapes" tab and drag various shapes onto the big circle to play and explore math-inspired grooves. Share your creations on Facebook or Twitter, or continue your groove over at the online digital audio workstation at Soundtrap.com.