Subsequently, Berkhout founded a successful quintet with the vibraphonist Frits Landesbergen called The Swingmates.
Landesbergen | Landesbergen (Samtgemeinde) | Frits Zernike | Frits Staal | Frits Warmolt Went | Frits Clausen | Frits Bolkestein | ''Winter at Simoa River''
Frits Thaulow | Frits Thaulow | Frits Philips | Frits Landesbergen |