In the application of music therapy involves three parameters: the cadence or rhythm, intensity or volume, frequency or staff positions.
* High notes, acute: they act preferentially on muscle contractures, spread rapidly in space and even a very short distance to work on the nervous system, is a warning signal and the reflection increases, while helping us to wake up or can we get out of the state of fatigue or lethargy.
As a negative factor that we have the ear is very sensitive to them and if they are very intense and prolonged can damage, as well as effects on the nervous system can cause some slippage and changes in nerve impulses that are rampant.
* Note low, the bass seems to have no effect on nerve endings and the effect is more mechanical, so they have a greater influence on the hollow body areas, such as the lungs, heart and stomach, probably because they are the ideal place for resonance.
Bass notes are considered bad short distance, so the direct effect is difficult to measure, although it could be heard for miles around. Therapeutic effects tend to produce a dark, pessimistic vision of the future and extreme calmness.
The rhythm of the music notes, a serious or acute, is the second most important factor. While both laughed slow induce peace and meditation, the faster the movement and invite you to make sense.
The third and final element is the intensity of the music. One of the two other effects, time or frequency produces much smaller effects than the current volume to a point or score a convincing value in itself can become annoying if the volume is higher than what the listener can support.