User:CompactStar/RST notation: Difference between revisions
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'''RST notation''' is a [[notation]] | '''RST notation''' is a [[notation]] for [[just intonation]] and [[regular temperaments]] that was devised by [[User:CompactStar|CompactStar]]. Iit is an extension of [[3-limit]] [[chain-of-fifths notation]] where prefixes are added to convey higher-limit commatic alterations. The prefixes for formal commas are based on the common "super-"/"sub-" for the 7-limit formal comma [[64/63]], but with the first letter mutated. They are obtained by going through a truncated version of the alphabet (RSTUVWXYZ) and appending -uper/-ub. Thus the formal comma for 5 has the prefix pair "ruper-"/"rub-", 7 has the prefix pair "super-"/"sub-", 11 has prefix pair "tuper-"/"tub-". These are abbreviated as R/r, S/s, T/t, etc. uuper-/uub- is modified to uper-/ub- for ease of pronunciation. The main advantage of this system is that it is easily typable and memorizable, although it is very arbitrary. | ||
== Formal commas == | |||
{| class="wikitable center-all" | |||
! Prime limit | |||
! Formal comma | |||
! Prefix pair | |||
1 Abbreviation | |||
|- | |||
| 5 | |||
| [[81/80]] | |||
| ruper-/rub- | |||
| R/r | |||
|- | |||
| 7 | |||
| [[64/63]] | |||
| super-/sub- | |||
|- | |||
| 11 | |||
| [[33/32]] | |||
| tuper-/tub- | |||
|- | |||
| 13 | |||
| [[1053/1024]] | |||
| uper-/ub- | |||
|- | |||
| 17 | |||
| [[4131/4096]] | |||
| vuper-/vub- | |||
|- | |||
| 19 | |||
| [[513/512]] | |||
| wuper-/wub- | |||
|- | |||
| 23 | |||
| [[736/729]] | |||
| xuper-/xub- | |||
|- | |||
| 29 | |||
| [[261/256]] | |||
| yuper-/yub- | |||
|- | |||
| 31 | |||
| [[248/243]] | |||
| zuper-/zub- | |||
|} | |||