> [2.51.1 ...] hemioliou de chromatos di-[2]aipesis estin, > en he to te pyknon hemiolion [3] esti, tou [t'] enarmoniou, > kai ton dieseon heka-[4]teras ton enarmonion. > >> [2.51.1 ...] The division of the hemiolic chromatic [2] is that >> in which the _pyknon_ is one and a half times [3] that of the enharmonic, >> and each of its dieses is [4] one and a half times the corresponding enharmonic diesis.

And again, extracting from the more elaborate phrase previously quoted, that which is relevant to this genus:

[2.51.4-7] > the hemiolic _pyknon_ ... falls short of being a tone by > an enharmonic diesis