RaagaDB app is meant to be comprehensive database for Carnatic Raagas. Melakartha and Janya raagas are included. UMID16 (Unique Mela ID 16 Swaras) is a new concept. The ID is automatically created from the Swaras of the Mela Raaga by assigning bit to 16 Swaras. That is, 1 for each Swaras and 0 for absent Swaras. UMID12 is a variant for 12 Swara system used in Hindusthani sysytem.