diff --git a/src/plugins/random_music.cc b/src/plugins/random_music.cc
index af35b3e..6eeb798 100644
--- a/src/plugins/random_music.cc
+++ b/src/plugins/random_music.cc
@@ -145,6 +145,7 @@ void RNG_music::parse_random_parameters(void)
 void RNG_music::compute_random_numbers(void)
 {
   bool rndsign = pcf_->get_value_safe<bool>("random", "grafic_sign", false);
+  bool bUseNGenIC = pcf_->get_value_safe<bool>("random","coarse_ngenic",false);
 
   std::vector<rng *> randc(std::max(levelmax_, levelmin_seed_) + 1, (rng *)NULL);
 
@@ -156,7 +157,8 @@ void RNG_music::compute_random_numbers(void)
     if (rngfnames_[levelmin_seed_].size() > 0)
       randc[levelmin_seed_] = new rng(1 << levelmin_seed_, rngfnames_[levelmin_seed_], rndsign);
     else
-      randc[levelmin_seed_] = new rng(1 << levelmin_seed_, ran_cube_size_, rngseeds_[levelmin_seed_]);
+      randc[levelmin_seed_] = new rng(1 << levelmin_seed_, ran_cube_size_, rngseeds_[levelmin_seed_],
+                                      bUseNGenIC, true);
 
     for (int i = levelmin_seed_ + 1; i <= levelmin_; ++i)
     {
@@ -178,7 +180,7 @@ void RNG_music::compute_random_numbers(void)
       randc[levelmin_seed_] = new rng(1 << levelmin_seed_, rngfnames_[levelmin_seed_], rndsign);
     else
       randc[levelmin_seed_] =
-          new rng(1 << levelmin_seed_, ran_cube_size_, rngseeds_[levelmin_seed_]); //, x0, lx );
+          new rng(1 << levelmin_seed_, ran_cube_size_, rngseeds_[levelmin_seed_], bUseNGenIC, true); //, x0, lx );
 
     for (int ilevel = levelmin_seed_ - 1; ilevel >= (int)levelmin_; --ilevel)
     {
@@ -205,7 +207,7 @@ void RNG_music::compute_random_numbers(void)
     if (rngfnames_[levelmin_].size() > 0)
       randc[levelmin_] = new rng(1 << levelmin_, rngfnames_[levelmin_], rndsign);
     else
-      randc[levelmin_] = new rng(1 << levelmin_, ran_cube_size_, rngseeds_[levelmin_]);
+      randc[levelmin_] = new rng(1 << levelmin_, ran_cube_size_, rngseeds_[levelmin_], bUseNGenIC, true);
   }
 
   store_rnd(levelmin_, randc[levelmin_]);
diff --git a/src/plugins/random_music_wnoise_generator.cc b/src/plugins/random_music_wnoise_generator.cc
index 90f243c..f1d8113 100644
--- a/src/plugins/random_music_wnoise_generator.cc
+++ b/src/plugins/random_music_wnoise_generator.cc
@@ -11,10 +11,13 @@
 
 
 template <typename T>
-void rapid_proto_ngenic_rng(size_t res, long baseseed, music_wnoise_generator<T> &R)
-{
-	music::ulog.Print("Invoking the N-GenIC random number generator");
+void music_wnoise_generator<T>:: gen_topgrid_NGenIC(size_t res, long baseseed) {
+  music::ulog.Print(
+      "Generating large-scale random numbers using N-GenIC RNG with seed %ld",
+      baseseed);
 
+  /////////////////////////////////////////////////////////////////////////////////////////////////////////
+  // execute N-GenIC rando number generator
 	unsigned *seedtable = new unsigned[res * res];
 
 	gsl_rng *random_generator = gsl_rng_alloc(gsl_rng_ranlxd1);
@@ -138,7 +141,7 @@ void rapid_proto_ngenic_rng(size_t res, long baseseed, music_wnoise_generator<T>
 	for (int i = 0; i < (int)res; ++i)
 		for (size_t j = 0; j < res; ++j)
 			for (size_t k = 0; k < res; ++k)
-				R(i, j, k) = rnoise[((size_t)i * res + j) * res + k];
+				(*this)(i, j, k) = rnoise[((size_t)i * res + j) * res + k];
 
 	delete[] rnoise;
 }
@@ -154,7 +157,8 @@ music_wnoise_generator<T>::music_wnoise_generator(unsigned res, unsigned cubesiz
 }
 
 template <typename T>
-music_wnoise_generator<T>::music_wnoise_generator(unsigned res, unsigned cubesize, long baseseed, bool zeromean)
+music_wnoise_generator<T>::music_wnoise_generator(  unsigned res, unsigned cubesize, long baseseed, 
+                                                    bool bUseNGenIC, bool zeromean )
     : res_(res), cubesize_(cubesize), ncubes_(1), baseseed_(baseseed)
 {
   music::ilog.Print("Generating random numbers (2) with seed %ld", baseseed);
@@ -162,23 +166,19 @@ music_wnoise_generator<T>::music_wnoise_generator(unsigned res, unsigned cubesiz
   double mean = 0.0;
   size_t res_l = res;
 
-  bool musicnoise = true;
-  if (!musicnoise)
-    cubesize_ = res_;
-
-  if (!musicnoise)
-    music::elog.Print("This currently breaks compatibility. Need to disable by hand! Make sure to not check into repo");
+  if( bUseNGenIC ){
+    cubesize_ = res;
+    ncubes_   = 1;
+  }
 
   initialize();
 
-  if (musicnoise)
+  if( !bUseNGenIC ){
     mean = fill_all();
-  else
-  {
-    rnums_.push_back(new Meshvar<T>(res, 0, 0, 0));
-    cubemap_[0] = 0; // create dummy map index
-    register_cube(0, 0, 0);
-    rapid_proto_ngenic_rng( res_, baseseed_, *this );
+  }else{
+    mean = 0.0;
+    gen_topgrid_NGenIC( res_, baseseed_ );
+    zeromean = false;
   }
 
   if (zeromean)
diff --git a/src/plugins/random_music_wnoise_generator.hh b/src/plugins/random_music_wnoise_generator.hh
index 97687b3..7fde3d0 100644
--- a/src/plugins/random_music_wnoise_generator.hh
+++ b/src/plugins/random_music_wnoise_generator.hh
@@ -39,6 +39,9 @@ protected:
   //! subtract a constant from an entire cube
   void subtract_from_cube(int i, int j, int k, double val);
 
+  //! usees the N-GenIC random number generator to set up the top grid
+  void gen_topgrid_NGenIC( size_t res, long baseseed );
+
   //! copy random numbers from a cube to a full grid array
   template <class C>
   void copy_cube(int i, int j, int k, C &dat)
@@ -127,7 +130,7 @@ public:
   music_wnoise_generator(music_wnoise_generator<T> &rc, unsigned cubesize, long baseseed, int *x0_ = NULL, int *lx_ = NULL, bool zeromean = true);
 
   //! constructor
-  music_wnoise_generator(unsigned res, unsigned cubesize, long baseseed, bool zeromean = true);
+  music_wnoise_generator(unsigned res, unsigned cubesize, long baseseed, bool bUseNGenIC, bool zeromean = true );
 
   //! constructor to read white noise from file
   music_wnoise_generator(unsigned res, std::string randfname, bool rndsign);