[1.24.26] > Meta tauta triton eilephtho pyknon pros toi autoi; > >> consider a third _pyknon_ placed next to the same note [_hypate_]...

[1.25.30-31] > apo de tes hemioliou epi ten enarmonion diesis, > >> from the _lichanos_ of the hemiolic chromatic ... to the enharmonic >> _lichanos_ is a diesis ...

To which Barker supplies the note:

[Barker 1989, p 143, note 107] > The word diesis, unqualified, refers to the enharmonic diesis, 1/4 tone.