User:CompactStar/RST notation: Difference between revisions
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| Line 5: | Line 5: | ||
! Formal comma | ! Formal comma | ||
! Prefix pair | ! Prefix pair | ||
! Abbreviation | |||
|- | |- | ||
| 5 | | 5 | ||
| Line 15: | Line 15: | ||
| [[64/63]] | | [[64/63]] | ||
| super-/sub- | | super-/sub- | ||
| S/s | |||
|- | |- | ||
| 11 | | 11 | ||
| [[33/32]] | | [[33/32]] | ||
| tuper-/tub- | | tuper-/tub- | ||
| T/t | |||
|- | |- | ||
| 13 | | 13 | ||
| [[1053/1024]] | | [[1053/1024]] | ||
| uper-/ub- | | uper-/ub- | ||
| U/u | |||
|- | |- | ||
| 17 | | 17 | ||
| [[4131/4096]] | | [[4131/4096]] | ||
| vuper-/vub- | | vuper-/vub- | ||
| V/v | |||
|- | |- | ||
| 19 | | 19 | ||
| [[513/512]] | | [[513/512]] | ||
| wuper-/wub- | | wuper-/wub- | ||
| W/w | |||
|- | |- | ||
| 23 | | 23 | ||
| [[736/729]] | | [[736/729]] | ||
| xuper-/xub- | | xuper-/xub- | ||
| X/x | |||
|- | |- | ||
| 29 | | 29 | ||
| [[261/256]] | | [[261/256]] | ||
| yuper-/yub- | | yuper-/yub- | ||
| Y/y | |||
|- | |- | ||
| 31 | | 31 | ||
| [[248/243]] | | [[248/243]] | ||
| zuper-/zub- | | zuper-/zub- | ||
| Z/z | |||
|} | |} | ||
Latest revision as of 23:55, 18 October 2026
RST notation is a notation for just intonation and regular temperaments that was devised by 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
| Prime limit | Formal comma | Prefix pair | Abbreviation |
|---|---|---|---|
| 5 | 81/80 | ruper-/rub- | R/r |
| 7 | 64/63 | super-/sub- | S/s |
| 11 | 33/32 | tuper-/tub- | T/t |
| 13 | 1053/1024 | uper-/ub- | U/u |
| 17 | 4131/4096 | vuper-/vub- | V/v |
| 19 | 513/512 | wuper-/wub- | W/w |
| 23 | 736/729 | xuper-/xub- | X/x |
| 29 | 261/256 | yuper-/yub- | Y/y |
| 31 | 248/243 | zuper-/zub- | Z/z |