DJ MJ12 DJ MJ12 Boston DJ MJ-12 has spent 30 years in the entertainment industry and is a well rounded Recording/Live Audio Engineer/Sound Designer/Producer. He has designed and produced soundtracks for high profile clients, from spectacular fireworks shows to energetic dance soundtracks for large audiences and casts of many. Expanding his creative ambitions, he started DJing in the mid 90’s. After listening and learning from the best DJ's he knows. His mixture of, what he likes to call, Floydian House, Deep House, Electro, Minimal and Trance shows his passion for dance and electronic underground music.