Translations:Sonification in practice/87/en
Usually the tendency is to map a single feature of the data to a single parameter of output sound but we humans are generally more capable of perceiving differences in sound if such differences manifest concurrently through different properties. So it is not a bad idea to map the same variable onto different psychoacoustic properties of a sound (pitch and volume as an example of the most evident) if we want to emphasize its change and dynamics.