Here’s an oft unheard of instrument known as the hardingfele, or Hardanger fiddle, which hails from Norway. Very beautiful instrument, both in sound and appearance. It has sympathetic strings, which resonate fundamental or harmonic frequencies (very cool science behind this!!!), creating a fuller sound.
Actually, many people have heard this instrument before but don’t know it: the Rohan theme solo from The Lord of the Rings is played on hardingfele.
Pretty sweet sound.