Dissonance refers to the combination of musical notes that sound tense, unstable, or harsh when played together. It creates a sense of tension and usually resolves to a more stable and consonant sound.
Consonance: Consonance is the opposite of dissonance. It refers to the combination of musical notes that sound pleasant and stable when played together.
Resolution: Resolution is the process by which dissonant sounds move or resolve into consonant sounds, providing a sense of closure and stability.
Interval: In music theory, an interval is the distance between two pitches. Dissonant intervals are those that create tension or instability when played together.