Pieces built on the tones of the major scale are termed major and those built on a minor scale are said to be in a minor key. Harmony that brings about a concordant or agreeable combination of notes is termed consonant. When chords do not fit into an accepted pattern of harmony, they are said to be dissonant or unstable. Dissonance is often used to create moments of suspense that later resolve into more pleasing tones of consonance. Dissonance is sometimes not considered harmony by some teachers of music, although most pedagogy classifies harmony as dissonant or consonant.
Music is based on structure and order.
Harmony, dissonance, and tonality are key elements in that school of thought. A descriptive treatment of harmony and dissonance as they are defined under the principles of tonality. Inc. PageWise makes no representations about the content published on this site. PageWise hereby disclaims all warranties and conditions with regard to this information, and user agrees that all such use is at its own risk. If you are under 18, please do NOT opt-in to receive email offers on this page.