The Viola da Gamba is a six-stringed baroque instrument. It's similar in size to the cello, but has slightly different shape, uses frets, and is tuned in 4ths.
It is strung with synthetic gut strings, which helps to give it a strident, husky sound.
This instrument can provide a rustic alternative to the classical string sound.
Here are examples of how old strings can make really cool new music:
Black Sails Main Title - https://www.youtube.com/watch?v=PBmzzrU3gR8
Metallica "One" played on Gamba - https://www.youtube.com/watch?v=z7S07C_FX2E
