AFAIK Harris never recorded on vibes, although it was his first instrument, along with piano (on which he recorded quite often). That Janus LP to me smells like a bootleg of some VeeJay tracks with titles changed. As MG and Ubu noted, "Indonesia" is listed as unissued on VeeJay - "Olifant Gesang" (different spelling) was issued. Aural comparison could help to find out if takes are different. I have the version issued on VeeJay, but not the Janus.