As of vbgallery 3.01 there is a basic importer that will import album pictures to vbgallery.
But it is very basic and will not do what you expect. (Not without you doing a little bit of work.)
In your case, you would have to import to an existing category.
all images will then be in that category, as they ALL have been uploaded by 1 user. (if different users would have uploaded to their own albums, the images would be in different categories. 1 for each uploader.)
Then you will have to create categories for each artist.. and move the respective images to that category.
link for importer:
[very Beta] Import vB4 Albums to vBGallery 3
Luc