5L 4s: Difference between revisions
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# [[Semaphore]] generated by semifourths flatter than 3\14 (257.14¢). This implies a diatonic fifth. | # [[Semaphore]] generated by semifourths flatter than 3\14 (257.14¢). This implies a diatonic fifth. | ||
#: The generator could be viewed as a 15/13, and the resulting "ultramajor" chords and "inframinor" triads could be viewed as approximating 10:13:15 and 26:30:39. See [[Arto and Tendo Theory]]. | #: The generator could be viewed as a 15/13, and the resulting "ultramajor" chords and "inframinor" triads could be viewed as approximating 10:13:15 and 26:30:39. See [[Arto and Tendo Theory]]. | ||
# [[ | # [[Bug]], generated by semifourths sharper than 3\14 (257.14¢). This implies a "[[mavila]]" or superdiatonic fifth. | ||
== Scale tree == | == Scale tree == | ||
{| class="wikitable" | {| class="wikitable" | ||
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| | 233\1076 | | | 233\1076 | ||
| | 259.851 | | | 259.851 | ||
| style="text-align:center;" | Golden [[ | | style="text-align:center;" | Golden [[bug]] | ||
|- | |- | ||
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| | | | | | ||
| | 260.870 | | | 260.870 | ||
| style="text-align:center;" | Optimum rank range (L/s=3/2) | | style="text-align:center;" | Optimum rank range (L/s=3/2) bug | ||
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=== | === Bug === | ||
For convenience's sake, we can view [[ | For convenience's sake, we can view [[bug]] as any 5L 4s tuning where two [[semifourth]] generators make a ''superdiatonic'' ([[7L 2s]]) fourth, i.e. any tuning where the semifourth is between 3\14 (257.14¢) and 2\9 (266.67¢). [[23edo]]'s 5\23 (260.87¢) is an example of a bug generator. | ||
The sizes of the generator, large step and small step of 5L 4s are as follows in various | The sizes of the generator, large step and small step of 5L 4s are as follows in various bug tunings. | ||
{| class="wikitable right-2 right-3 right-4 right-5" | {| class="wikitable right-2 right-3 right-4 right-5" | ||
|- | |- |