Harmonic (disambiguation)

Adjective

Harmonic is originally an adjective relating to the combination of musical notes to create chords.

Noun

Harmonic, later, becomes a noun meaning a soft high note played on a stringed instrument by not pressing the string all the way down, and now, also usually refers to the frequency components of a time-varying signal, such as a musical note.

Mathematics, science and engineering

• Harmonic (mathematics), a number of concepts in mathematics
• Harmonic analysis, representing signals by superposition of basic waves
• Harmonic oscillator, a concept in classical mechanics
• Simple harmonic motion, a concept in classical mechanics
• Harmonic distortion, a measurement of signal distortion
• Harmonics (electrical power)
• harmonic series (mathematics), a divergent infinite series
• Harmonic tremor, a rhythmic earthquake which may indicate volcanic activity

Music

• Artificial harmonic, a string instrument playing technique
• Enharmonic, a "spelling" issue in music
• Guitar harmonics, a guitar playing technique
• Scale of harmonics, a musical scale based on harmonic nodes of a string
• The Harmonics, a rock a cappella group from Stanford University
• Harmony, the musical use of simultaneous pitches, or chords
• Inharmonicity, the degree of overtones' departure from integral multiples of the fundamental frequency
• Overtone, any resonant frequency higher than the fundamental frequency

Other uses

• Harmonic (color), a relationship between three colors
• Harmonic Convergence, a New Age astrological term
• "Harmonics", the twelfth movement of Mike Oldfield's Tubular Bells 2003 album