Altera Enigma is the Jazz Fusion influenced Progressive Metal/Rock band of Jason De Ron (the former guitarist of Paramaecium), and Jefray Arwadi (guitarist and vocalist of Kekal). Both these musicians have a career that has seen them record and released nearly 20 albums between them.

While both Jason and Jeff may be more well known for their metal, with Paramaecium and Kekal having both released many critically acclaimed albums of intense, evocative metal, in actual fact both musicians are h...