[1] Agerbeek gained recognition as a highly regarded accompanist for numerous renowned American jazz musicians who toured and resided in Europe during the 1960s and 1970s.

Notable collaborations included performances with Gene Ammons, Art Blakey, Don Byas, Johnny Griffin, Dexter Gordon, Hank Mobley and Ben Webster.

[6] in the 1990s Agerbeek performed with The Grand Piano Boogie Train featuring Dutch pianists Rob Hoeke and Jaap Dekker and recorded two albums with the group.

As of 2022, Agerbeek still occasionally performed with his trio consisting of himself on piano and Ben Schröder on drums and Alex Milo on bass.

Joining in on vocals on several performances were Jazz singer Mirjam van Dam,[7] Susanne de Rooij[8] and Brigitte Soffner.