A flute can be distinguished from a trumpet in any event- even during times that they're being played at the same level of dynamics as well as the exact same tone! This brings us to the third property of sound: Tone Colour. An alternative name for tone colour is timbre. Words such as dark, dull, and bright describe tone colour.
Switches in tone colour- like with those in dynamics- bring about variety and differentiation. Like changes in dynamics, changes in tone make assortment and differentiation. E.g. When a particular song is played on two different instruments at separate times, the tone colour of the respective instruments have distinct expressive effects. Then again, a difference in tone might be utilized to feature another song, e.g. after violins play a tune, an oboe might introduce a differentiating one.
Tone tones additionally create a feeling of progression- when a particular instrucment plays a specific song, it becomes simpler to perceive the arrival of the song yet once again. A song's emotional impression can be reinforced by certain instruments. Heroic songs, for example, are performed by a trumpet, whereas a calming melody can be created by a flute.
FUN FACT: Composers produce songs keeping the tone colour of a specific instrument in mind.
Composers are exposed to limitless assortment of tone colours. Joining different instruments in one performance/melody brings forth an entirely new tone that could not be produced by the respective instruments otherwise. For instance, the clarinet, violin, and trombone. Shifting the amount of instruments and voices that collab on one melody allows a change in tone colour.
Lastly, modern electronic methods bring about a new world when it comes to tone colours: entirely new tone colours are created by composers which are not like those of conventional instruments.