Apostolos Angelis (composer)  Apostolos Angelis () is a Greek composer, engineer and producer of Εlectronic, Classical and Orchestral music. Apostolos Angelis is from Trikala Thessaly, Greece, a self-taught musician who has learned composing music in his mind without keeping notes. During the years, Apostolos has collaborated with respected musicians in London (where he currently lives) and also worked as engineer and producer on various other projects.