Both on compositions by the bassist. The first one for bass and string quartet.
The other one was a previously recorded track featuring a.o. the late Toots Thielemans on harmonica, track to which he added a string quartet.
This blurred picture is a screenshot excerpted from a smartphone video.
Nicolas Stevens (vl 1), Elsa de Lacerda (vl 2), Marc Pijpops (viola), Jean-François Assy (cello), Michel Herr conducting.
Da Romeo's Studio, Brussels, July 26, 2017.