On the kithara

I am often in awe of the craftsmanship and ingenuity of instrument-makers (luthiers), so here's a link to a video explaining the workings of the Ancient Greek Kithara, the instrument beloved of the god Apollo. Whoever invented the 'whammy bar', the device which gives this ancient lyre its characteristic vibrato, must have been divinely inspired, as must have Michalis Georgiou, the luthier who patiently rediscovered it.