Musical Considerations

There is a greater difference in the auditory system's sentivity at different frequencies for soft sounds (lower curves have a bigger dip).

For loud sounds, there is less variation with frequency.

Because of this, it is useful to make some considerations when making music:

• for a musical instrument to be heard easily, its frequency should lie between 500 - 4000 Hz;
• low frequency instruments won't be perceived as being loud;
• low frequencies contribute more to the sound when playing fortissimo (ff) than when playing pianissimo (pp).