No independent biography could be located for guitarist Koen Claeys; he is not covered by Wikipedia, a Siccas Guitars artist page, or other identifiable source. The only confirmed information is his appearance on the Siccas Guitars YouTube channel playing his own arrangement of a jazz standard on a 2017 Evan Kingma classical guitar.

Not established from available sources.

Sources:

• https://www.youtube.com/watch?v=8X_6K3wuOAc