28/25: Difference between revisions
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'''28/25''', the '''(septimal) middle whole tone''', is the interval between [[5/4]] and [[7/5]], and is intermediate in size between [[10/9]], of which it is [[126/125]] sharp, and [[9/8]], of which it is [[225/224]] flat. It's actually the [[mediant]] of [[19/17]] and [[9/8]]. A [[meantone]] where the tone is tuned to be exactly 28/25 has a fifth of size 2√14/5, or 698.099{{cent}}. | '''28/25''', the '''(septimal) middle whole tone''', is the interval between [[5/4]] and [[7/5]], and is intermediate in size between [[10/9]], of which it is [[126/125]] sharp, and [[9/8]], of which it is [[225/224]] flat. It's actually the [[mediant]] of [[19/17]] and [[9/8]]. A [[meantone]] where the tone is tuned to be exactly 28/25 has a fifth of size 2√14/5, or 698.099{{cent}}, which is closely approximated by [[55edo]]. | ||
== See also == | == See also == | ||
* [[25/14]] – its [[octave complement]] | * [[25/14]] – its [[octave complement]] | ||
* [[25/21]] – its [[fourth complement]] | |||
* [[29/26]] – a co-mediant interval | * [[29/26]] – a co-mediant interval | ||
* [[Gallery of just intervals]] | * [[Gallery of just intervals]] | ||