I was reading some material about improvising over dominant7 chords when I saw a Mixolydian b13 b9 scale. When I took a closer look on it, I realised that it is the fifth mode of Harmonic Minor scale. Well, since Harmonic Minor scale is a minor scale, shouldn't Mixolydian b13 b9 be called Phrygian #3 instead? At first name "Mixolydian" led me into missunderstanding about where the mode had come from...
Mixolydian b13 (or b6) is the 5th mode of Melodic Minor scale, so shouldn't it be called Phrygian #2 #3 as well?
P.S. I've found these scales in our Scale generator as Phrygian Major Scale (Mixolydian b13 b9) and Mixolydian flat 6 (Mixolydian b13 (or b6)).