Unit+2

__**TERMs**__
the key to understanding not only harmonics, but also timbre and the basic functioning of many musical instruments. shows the relationships among the twelve tones of the chromatic scale, their corresponding key signatures, and the associated major and minor keys. More generally, it is a geometrical representation of relationships among the 12 pitch classes of the chromatic scale in pitch class space. or Ionian scale is one of the diatonic scales. It is made up of seven distinct notes, plus an eighth which duplicates the first an octave higher. In solfege these notes correspond to the syllables "Do, Re, Mi, Fa, Sol, La, Ti, (Do)". a diatonic scale with a third scale degree at an interval of a minor third above the tonic. the first note of a musical scale in the tonal method of musical composition. the second degree or note of a diatonic scale (in other words, immediately "above" the tonic). the third degree of the diatonic scale, being the "middle" note of the tonic triad. the technical name for the fourth tonal degree of the diatonic scale. the fifth degree of the scale. the sixth tonal degree of the diatonic scale a note or pitch which resolves or "leads" to a note one semitone higher or lower, being a lower and upper leading-tone, respectively. the interval between one musical pitch and another with half or double its frequency. is the smallest musical interval commonly used in Western tonal music and it is considered the most dissonant a musical interval that occurs between the first and second degrees of a major scale, the tonic and the supertonic. The **Ionian mode** is a musical mode of diatonic scale. It was part of the music theory of ancient Greece, and was based around the relative natural scale in C (that is, the same as playing all the 'white notes' of a piano from C to C). An **Aeolian mode** formed part of the music theory of ancient Greece, based around the relative natural scale in A (that is, the same as playing all the 'white notes' of a piano from A to A). a series of four tones filling in the interval of a perfect fourth, a 4:3 frequency proportion. In modern usage a tetrachord is any four-note segment of a scale or tone row. a musical scale with five pitches per octave in contrast to an heptatonic (seven note) scale such as the major scale.
 * Harmonic Series - Overtone Series**
 * Circle of Fifths**
 * Major Scale**
 * Minor Scale**
 * Tonic**
 * Supertonic**
 * Mediant**
 * Subdominant**
 * Dominant**
 * Submediant**
 * Leading Tone**
 * Octave**
 * Half Step**
 * Whole Step**
 * Mode - Ionian and Aeolian**
 * Tetrachord**
 * Pentatonic Scale**