Christoforides Antonakis successfully completed the Coursera MOOC "Developing Your Musicianship" from Berklee College of Music. Over six weeks, the course covered topics like harmony, ear training, intervals, triads, chord progressions, scales, chord voicings, time signatures, and song forms to help students improve their musical skills and knowledge. The Statement of Accomplishment was issued by Professor George W. Russell Jr. of Berklee College of Music's Harmony and Piano Departments.