AI beschrijving: 'O. Express' by Martinelli is a Techno/Trance track released in 1993 under the label Overline. Key contributors to the project include Paolo Martinelli, an Italian musician and producer. 'O. Express' is notable for its contribution to the early 1990s European Techno and Trance scene, characterized by its fast-paced rhythm and distinctive synthesizer melodies. As a significant track of its time, 'O. Express' remains a representation of the era's underground electronic music movement.