The Interval Music Compositor is an Android app for the creation of music intervals (e.g. 30s music, 10s break, etc.) for the purpose of sports and physical education. Use it for your interval trainings or for circuit trainings at school or at your sports club. Just choose some tracks from your music collection, set the interval duration and you're ready to go! Suitable for: interval training (also HIIT for regimen like the ones of Tabata, Zuniga, or Timmons), circuit training, pyramid training, physical education, PE, sports, workout and the use as mixtape, or timer. BASIC AND PREMIUM MODE The basic version of the app is available for download free of charge. It contains all functionality needed for the normal use of the app. For a small fee the premium mode can be unlocked via in-app-purchase. It adds additional, convenient features as for example the possibility to manage multiple track lists.