"Phia" is Sophia Exiner from Melbourne, Australia, and she is really skilled at singing, songwriting, playing the kalimba, and live looping. (Looping is electronically repeating a short section of music, permitting a musician to accompany themselves.)
Her kalimba of choice is a Hugh Tracey Celeste Alto. Unlike the standard Alto kalimba, which is mounted on a resonating box, the Celeste Alto is mounted on a flat board and has a flatter EQ curve and no natural "wah," but it has the same notes as the standard Alto.
Anyway, I am quite taken with Phia's music. I especially like the way she weaves multiple kalimba parts together in the looping, and how she builds up complex tapestries of sound with the looper and then drops out the parts to simplify the musical texture of a bridge or chorus.