What is an arpeggio?

This is a musical term with a precise definition therefore it is best just to learn the definition.

If you play an instrument you will know that an arpeggio is:

The playing of the tones of a chord separately

This contrasts with playing the tones of a chord all at once, or simultaneously.

Warm up exercises for the voice often involving singing an arpeggio of a chord.

Find out more about Music

Related Questions:

What Is Jazz?
How Is Early Samba Different To Samba Today ?
Why Was Music Ever Invented?