Topic of the Day: MICROTONES

Microtones focus your attention to qualities of distance not available in equal temperament.

On an electric guitar, a slide can act as a quasi-third bridge allowing normally inaudible bi-tones to be amplified by pickups.

A slide can also trigger bi-tone multiphonics due to changing the proportions of the strings on the left side of the third bridge. Bi-tones are sometimes called ghost notes/tones in popular parlance, but this name only serves to obscure this well-documented aspect of string vibration.

On an acoustic guitar, bi-tones are normally audible and add to the complexity of the acoustic sound.

Topic of the Day: RESONANCE

Resonance. The minimum through maximum vibration potential of a system. Includes inductive vibrations in supposedly unrelated circuits (i.e., natural, human, and computer system environments). Metaphorically, not formally, related to resonance in electronic circuit theory.

 

Microtones bring your attention to qualities of distance not available in equal temperament. It's all about resonance, both in and outside your ears, and the ears' ability to map space in your brain.

In addition to making harmonic use of the modes of limited transposition, he [Messiaen] cited the harmonic series as a physical phenomenon which provides chords with a context which he felt to be missing in purely serial music.^[44] An example of Messiaen's harmonic use of this phenomenon, which he called "resonance", is the last two bars of Messiaen's first piano Prélude, La colombe ("The dove"); the chord is built from harmonics of the fundamental base note E.^[45]  - Wikipedia: Messiaen, Olivier. 1/4/11