224/135: Difference between revisions
Make this marvel-ptolemaic until 3645/3584 has an accepted name |
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| Color name = zg7, zogu 7th | | Color name = zg7, zogu 7th | ||
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'''224/135''', the '''septimal narrow major sixth''', or '''marvel-ptolemaic major sixth''', is a [[7-limit]] interval that forms the difference | '''224/135''', the '''septimal narrow major sixth''', or '''marvel-ptolemaic major sixth''', is a [[7-limit]] interval that forms the difference between [[16/9]] and [[15/14]]. It is flat of the [[27/16|Pythagorean major sixth]] by [[3645/3584]], i.e. a [[81/80|syntonic comma]] plus a [[225/224|marvel comma]]. This interval functionally doubles as a type of diminished seventh, flat of the [[32768/19683|Pythagorean diminished seventh]] by [[5120/5103]]. This gives rise to the name '''hemifamity diminished seventh'''. | ||
== See also == | == See also == | ||