Small comma: Difference between revisions

A '''comma''' is a small interval that occurs in [[just intonation]], between two intervals which are close in pitch. Commas are always greater than 1 (0 [[cent]]s) and not a power such as a square or cube of any other interval, and generally in a [[Harmonic Limit|low prime limit]]. The word is often used in reference to [[Regular Temperaments|regular tempering]] when the comma is ''[[tempering_out|tempered out]]'', which is to say reduced to a unison, by the temperament, thereby equating the intervals separated by that comma. For example the Syntonic or Didymus comma of 81/80, which occurs between [[10/9]] and [[9/8]], as well as [[81/64]] and [[5/4]], is tempered out by [[Meantone|meantone temperament]]. Commas are usually written as ratios, but they can also be written as monzos. The following lists mostly give both forms, as well as the size in [[cent]]s. Except for the 3-limit commas, the [[Color notation|color name]] refers to both the comma and the temperament created when it is tempered out.

| Double large yoyo negative 2nd

| quinyo

| saquabigu

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| L⁸y⁵³-14

| s⁹g⁵⁹16

| Laruru negative 2nd

| lasepruaquabiyo

| laquadzoatrigu

| triruaquinyo

| quadruayo

| lasepzoagugu

| quinruaquadyo

| satrizoagu

| lala-quabizoyo

| sasa-quaquadru

| quinquinrugu

| Lalu unison

| saquinluayo

| satriluaruru

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