If you play two different notes on the same instrument,what will be the primary difference between the two sounds

Question

Quizplus · Accepted Answer

The primary difference between two different notes played on the same instrument is their pitch, which is determined by the frequency of vibrations produced by the instrument. The timbre, purity, and amplitude may also differ between the two notes, but these differences are secondary to the difference in pitch.

If You Play Two Different Notes on the Same Instrument,what