Can't seem to come up with anything that works well for fast runs for this. I've heard this referred to as "the diminished scale", "the half/whole scale", "the altered scale with natural 13" or "lydian flat-7 altered". Who knows. To be clear, I mean the 8-note scale that alternates half-step, whole-step: C Db Eb E F# G A Bb C There's only three scales... do you use the same fingering for the three regardless of the root or do you change fingering for all twelve roots? I tend to have to use my thumb 3x per octave which slows me down. I know it's possible without but I'm even slower that way. Please send help.