public ChinookController(
     IArtistEntityBusiness artistEntityBusiness, IHostingEnvironment hostingEnvironment)
 {
     _artistEntityBusiness   = artistEntityBusiness;
     this.hostingEnvironment = hostingEnvironment;
 }
 public ArtistsController(
     IArtistEntityBusiness artistEntityBusiness)
 {
     _artistEntityBusiness = artistEntityBusiness;
 }