Compositions created using VST sounds, on the train routes made between the towns of Lleida and Pobla de Segur during the year 2019, in which a tripod as a pendulum with an Ipad was located in the middle of a wagon, and the action of the force of gravity and the inertia of the movement of the train automatically generated sounds through accelerometers. From these sounds some electroacoustic compositions have been generated experimentally.