+// if(!recording){
+// for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
+// if ((*i)->region() == r) {
+// cerr << "audio_streamview in add_region_view_internal region found" << endl;
+ /* great. we already have a AudioRegionView for this Region. use it again. */
+
+// (*i)->set_valid (true);
+
+ // this might not be necessary
+// AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
+
+// if (arv) {
+// arv->set_waveform_scale (_waveform_scale);
+// arv->set_waveform_shape (_waveform_shape);
+// }
+
+// return NULL;
+// }
+// }
+// }
+
+ region_views.push_front (region_view);