I'm gonna name my next dog, Fretful!

I'm gonna name my next dog, Fretful!
Just saw this on Facebook from @ClassicFM:
My goldfish are named Major, Minor, Dorian, Lydian, and Diminished. The only way I can tell them apart is by their scales.
To which I added that on the Mountain Dulcimer we also have Ionian and Mixolydian.
Woops I forgot poor old sorrowful Aeolian.