diff --git a/show/dance2017/cam/test/bg.n3 b/show/dance2017/cam/test/bg.n3
new file mode 100644
--- /dev/null
+++ b/show/dance2017/cam/test/bg.n3
@@ -0,0 +1,40 @@
+@prefix : <http://light9.bigasterisk.com/> .
+@prefix dev: <http://light9.bigasterisk.com/device/> .
+@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix xml: <http://www.w3.org/XML/1998/namespace> .
+@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
+
+@prefix set: <http://light9.bigasterisk.com/setting/> .
+
+
+:sample0 a :LightSample; :path "bg2-a.jpg"; :setting 
+[ :device dev:aura1; :deviceAttr :color;     :scaledValue "#ffffff" ],
+[ :device dev:aura1; :deviceAttr :rx;     :value 0.2 ],
+[ :device dev:aura1; :deviceAttr :ry;     :value 0.573 ] .
+
+:sample1 a :LightSample; :path "bg2-b.jpg"; :setting 
+[ :device dev:aura1; :deviceAttr :color;     :scaledValue "#ffffff" ],
+[ :device dev:aura1; :deviceAttr :rx;     :value 0.3 ],
+[ :device dev:aura1; :deviceAttr :ry;     :value 0.573 ] .
+
+:sample2 a :LightSample; :path "bg2-c.jpg"; :setting 
+[ :device dev:aura1; :deviceAttr :color;     :scaledValue "#ffffff" ],
+[ :device dev:aura1; :deviceAttr :rx;     :value 0.4 ],
+[ :device dev:aura1; :deviceAttr :ry;     :value 0.573 ] .
+
+:sample3 a :LightSample; :path "bg2-d.jpg"; :setting 
+[ :device dev:aura1; :deviceAttr :color;     :scaledValue "#ffffff" ],
+[ :device dev:aura1; :deviceAttr :rx;     :value 0.5 ],
+[ :device dev:aura1; :deviceAttr :ry;     :value 0.573 ] .
+
+:sample4 a :LightSample; :path "bg2-e.jpg"; :setting 
+[ :device dev:aura1; :deviceAttr :color;     :scaledValue "#ffffff" ],
+[ :device dev:aura1; :deviceAttr :rx;     :value 0.6 ],
+[ :device dev:aura1; :deviceAttr :ry;     :value 0.573 ] .
+
+:sample5 a :LightSample; :path "bg2-f.jpg"; :setting 
+[ :device dev:aura1; :deviceAttr :color;     :scaledValue "#ffffff" ],
+[ :device dev:aura1; :deviceAttr :rx;     :value 0.7 ],
+[ :device dev:aura1; :deviceAttr :ry;     :value 0.573 ] .
+