The “ Equipo Elevador ” presents ADD a series of improvisations recorded in a studio in an analogic tape.The three pieces have been treated with sonorities which we have been working with for the last years always within complex and formal compositions bearing in mind that they are worth it by themselves , we have decided to free them and let them be in the limelight .The reason of using tapes , is to utilize the background sound always present at all these reproduction of this support ,obsolete and that everybody avoids nowadays the same as digital peaks and noises in general produced by the instruments themselves which we use to make them part of the piece.