diff --git a/show/dance2010/config.n3 b/show/dance2010/config.n3
--- a/show/dance2010/config.n3
+++ b/show/dance2010/config.n3
@@ -89,6 +89,24 @@ ch:b25-R-w
 ch:b22-L-w
 ) .
 
+
+chase:back2 a :Chase; rdfs:comment "back non-white, brightness order, sans purple"; 
+  :channels (
+ch:b36-C-b
+ch:b24-R-b
+ch:b11-C-b
+ch:b23-L-b
+ch:b26-L-c
+ch:b21-R-c
+ch:b31-L-r
+ch:b13-C-r
+ch:b16-R-r
+ch:b34-C-r
+ch:b25-R-w
+ch:b22-L-w
+) .
+
+
 chase:scoop a :Chase; :channels (
 ch:down-r
 ch:down-c
diff --git a/show/dance2010/curves/song9-blue b/show/dance2010/curves/song9-blue
new file mode 100644
--- /dev/null
+++ b/show/dance2010/curves/song9-blue
@@ -0,0 +1,6 @@
+0 0
+108.49453852 0
+108.570411704 1
+143.300530973 1
+150.408692232 0
+192.773333333 0
diff --git a/show/dance2010/curves/song9-chs1 b/show/dance2010/curves/song9-chs1
--- a/show/dance2010/curves/song9-chs1
+++ b/show/dance2010/curves/song9-chs1
@@ -1,6 +1,10 @@
 0.0 0.0
 4.26607653296 0.0
 6.66574458276 1.0
+108.296992069 0.989361702128
+109.82807836 0.0
+142.937819404 0.0
+145.872401462 1.0
 174.877304085 1.0
 177.551868144 0.0
 192.773333333 0.0
diff --git a/show/dance2010/curves/song9-chs2 b/show/dance2010/curves/song9-chs2
--- a/show/dance2010/curves/song9-chs2
+++ b/show/dance2010/curves/song9-chs2
@@ -1,6 +1,10 @@
 0.0 0.0
 4.30228551588 0.0
 6.76614221721 1.0
+104.958796771 0.978723404255
+107.486142996 0
+141.668500693 0
+147.165478733 1
 174.832291196 1.0
 177.609379978 0.0
 192.773333333 0.0
diff --git a/show/dance2010/curves/song9-song09 b/show/dance2010/curves/song9-song09
--- a/show/dance2010/curves/song9-song09
+++ b/show/dance2010/curves/song9-song09
@@ -2,11 +2,11 @@ 0.0 0.0
 3.69002453199 0.0
 4.58043633921 1.0
 8.7757407692 0.382978723404
-110.627951463 0.340425531915
-115.168650964 0.787234042553
-122.461289555 0.797872340426
-124.662840828 1
-132.230673329 1
+108.501126467 0.31914893617
+108.527300977 0
+122.461289555 0.0
+124.662840828 0.0
+132.230673329 0.0
 141.615788802 0.606382978724
 174.766450719 0.585106382979
 189.243261307 0.478723404255
diff --git a/show/dance2010/curves/song9-st1 b/show/dance2010/curves/song9-st1
new file mode 100644
--- /dev/null
+++ b/show/dance2010/curves/song9-st1
@@ -0,0 +1,13 @@
+0.0 0.0
+107.422959341 0.0212765957447
+110.792540151 0.170212765957
+114.34662078 0.968085106383
+118.91501027 0.489361702128
+122.039230853 1
+128.657718781 0.489361702128
+130.711187589 0.968085106383
+137.329675516 0.574468085106
+142.637102589 1
+146.538693325 0.63829787234
+148.745070124 0.0212765957447
+192.773333333 0.0
diff --git a/show/dance2010/curves/song9-t1 b/show/dance2010/curves/song9-t1
--- a/show/dance2010/curves/song9-t1
+++ b/show/dance2010/curves/song9-t1
@@ -1,2 +1,2 @@
-0 0
-192.773333333 0
+0.0 0.0
+192.773333333 0.0
diff --git a/show/dance2010/subterms/song9.n3 b/show/dance2010/subterms/song9.n3
--- a/show/dance2010/subterms/song9.n3
+++ b/show/dance2010/subterms/song9.n3
@@ -1,25 +1,35 @@
-<http://light9.bigasterisk.com/show/dance2010/song9/subterm/song09> <http://light9.bigasterisk.com/sub> <http://light9.bigasterisk.com/sub/song09>.
 <http://light9.bigasterisk.com/show/dance2010/song9/subterm/song09> <http://www.w3.org/2000/01/rdf-schema#label> "song09".
+<http://light9.bigasterisk.com/show/dance2010/song9/subterm/song09> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://light9.bigasterisk.com/Subterm>.
 <http://light9.bigasterisk.com/show/dance2010/song9/subterm/song09> <http://light9.bigasterisk.com/expression> "song09(t)".
-<http://light9.bigasterisk.com/show/dance2010/song9/subterm/song09> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://light9.bigasterisk.com/Subterm>.
-<http://light9.bigasterisk.com/show/dance2010/song9/subterm/chs2> <http://light9.bigasterisk.com/sub> <http://light9.bigasterisk.com/sub/chs2>.
+<http://light9.bigasterisk.com/show/dance2010/song9/subterm/song09> <http://light9.bigasterisk.com/sub> <http://light9.bigasterisk.com/sub/song09>.
 <http://light9.bigasterisk.com/show/dance2010/song9/subterm/chs2> <http://www.w3.org/2000/01/rdf-schema#label> "chs2".
+<http://light9.bigasterisk.com/show/dance2010/song9/subterm/chs2> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://light9.bigasterisk.com/Subterm>.
 <http://light9.bigasterisk.com/show/dance2010/song9/subterm/chs2> <http://light9.bigasterisk.com/expression> "chs2(t)*chase(t, names=back, ontime=1, offset=.08, random=1)".
-<http://light9.bigasterisk.com/show/dance2010/song9/subterm/chs2> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://light9.bigasterisk.com/Subterm>.
-<http://light9.bigasterisk.com/show/dance2010/song9/subterm/chs1> <http://light9.bigasterisk.com/sub> <http://light9.bigasterisk.com/sub/chs1>.
-<http://light9.bigasterisk.com/show/dance2010/song9/subterm/chs1> <http://www.w3.org/2000/01/rdf-schema#label> "chs1".
-<http://light9.bigasterisk.com/show/dance2010/song9/subterm/chs1> <http://light9.bigasterisk.com/expression> "chs1(t)*chase(t, names=colors, ontime=.3, offset=.1)".
-<http://light9.bigasterisk.com/show/dance2010/song9/subterm/chs1> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://light9.bigasterisk.com/Subterm>.
+<http://light9.bigasterisk.com/show/dance2010/song9/subterm/chs2> <http://light9.bigasterisk.com/sub> <http://light9.bigasterisk.com/sub/chs2>.
+<http://light9.bigasterisk.com/show/dance2010/song9/subterm/full> <http://www.w3.org/2000/01/rdf-schema#label> "full".
+<http://light9.bigasterisk.com/show/dance2010/song9/subterm/full> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://light9.bigasterisk.com/Subterm>.
+<http://light9.bigasterisk.com/show/dance2010/song9/subterm/full> <http://light9.bigasterisk.com/expression> "full(t)".
 <http://light9.bigasterisk.com/show/dance2010/song9/subterm/full> <http://light9.bigasterisk.com/sub> <http://light9.bigasterisk.com/sub/full>.
-<http://light9.bigasterisk.com/show/dance2010/song9/subterm/full> <http://www.w3.org/2000/01/rdf-schema#label> "full".
-<http://light9.bigasterisk.com/show/dance2010/song9/subterm/full> <http://light9.bigasterisk.com/expression> "full(t)".
-<http://light9.bigasterisk.com/show/dance2010/song9/subterm/full> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://light9.bigasterisk.com/Subterm>.
-<http://light9.bigasterisk.com/show/dance2010/song9/subterm/t1> <http://light9.bigasterisk.com/sub> <http://light9.bigasterisk.com/sub/t1>.
+<http://light9.bigasterisk.com/show/dance2010/song9> <http://light9.bigasterisk.com/subterm> <http://light9.bigasterisk.com/show/dance2010/song9/subterm/song09>.
+<http://light9.bigasterisk.com/show/dance2010/song9> <http://light9.bigasterisk.com/subterm> <http://light9.bigasterisk.com/show/dance2010/song9/subterm/chs2>.
+<http://light9.bigasterisk.com/show/dance2010/song9> <http://light9.bigasterisk.com/subterm> <http://light9.bigasterisk.com/show/dance2010/song9/subterm/full>.
+<http://light9.bigasterisk.com/show/dance2010/song9> <http://light9.bigasterisk.com/subterm> <http://light9.bigasterisk.com/show/dance2010/song9/subterm/blue>.
+<http://light9.bigasterisk.com/show/dance2010/song9> <http://light9.bigasterisk.com/subterm> <http://light9.bigasterisk.com/show/dance2010/song9/subterm/t1>.
+<http://light9.bigasterisk.com/show/dance2010/song9> <http://light9.bigasterisk.com/subterm> <http://light9.bigasterisk.com/show/dance2010/song9/subterm/chs1>.
+<http://light9.bigasterisk.com/show/dance2010/song9> <http://light9.bigasterisk.com/subterm> <http://light9.bigasterisk.com/show/dance2010/song9/subterm/st1>.
+<http://light9.bigasterisk.com/show/dance2010/song9/subterm/blue> <http://www.w3.org/2000/01/rdf-schema#label> "blue".
+<http://light9.bigasterisk.com/show/dance2010/song9/subterm/blue> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://light9.bigasterisk.com/Subterm>.
+<http://light9.bigasterisk.com/show/dance2010/song9/subterm/blue> <http://light9.bigasterisk.com/expression> "blue(t)".
+<http://light9.bigasterisk.com/show/dance2010/song9/subterm/blue> <http://light9.bigasterisk.com/sub> <http://light9.bigasterisk.com/sub/blue>.
 <http://light9.bigasterisk.com/show/dance2010/song9/subterm/t1> <http://www.w3.org/2000/01/rdf-schema#label> "t1".
+<http://light9.bigasterisk.com/show/dance2010/song9/subterm/t1> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://light9.bigasterisk.com/Subterm>.
 <http://light9.bigasterisk.com/show/dance2010/song9/subterm/t1> <http://light9.bigasterisk.com/expression> "t1(t)".
-<http://light9.bigasterisk.com/show/dance2010/song9/subterm/t1> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://light9.bigasterisk.com/Subterm>.
-<http://light9.bigasterisk.com/show/dance2010/song9> <http://light9.bigasterisk.com/subterm> <http://light9.bigasterisk.com/show/dance2010/song9/subterm/chs1>.
-<http://light9.bigasterisk.com/show/dance2010/song9> <http://light9.bigasterisk.com/subterm> <http://light9.bigasterisk.com/show/dance2010/song9/subterm/chs2>.
-<http://light9.bigasterisk.com/show/dance2010/song9> <http://light9.bigasterisk.com/subterm> <http://light9.bigasterisk.com/show/dance2010/song9/subterm/song09>.
-<http://light9.bigasterisk.com/show/dance2010/song9> <http://light9.bigasterisk.com/subterm> <http://light9.bigasterisk.com/show/dance2010/song9/subterm/t1>.
-<http://light9.bigasterisk.com/show/dance2010/song9> <http://light9.bigasterisk.com/subterm> <http://light9.bigasterisk.com/show/dance2010/song9/subterm/full>.
+<http://light9.bigasterisk.com/show/dance2010/song9/subterm/t1> <http://light9.bigasterisk.com/sub> <http://light9.bigasterisk.com/sub/t1>.
+<http://light9.bigasterisk.com/show/dance2010/song9/subterm/chs1> <http://www.w3.org/2000/01/rdf-schema#label> "chs1".
+<http://light9.bigasterisk.com/show/dance2010/song9/subterm/chs1> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://light9.bigasterisk.com/Subterm>.
+<http://light9.bigasterisk.com/show/dance2010/song9/subterm/chs1> <http://light9.bigasterisk.com/expression> "chs1(t)*chase(t, names=colors, ontime=.3, offset=.1)".
+<http://light9.bigasterisk.com/show/dance2010/song9/subterm/chs1> <http://light9.bigasterisk.com/sub> <http://light9.bigasterisk.com/sub/chs1>.
+<http://light9.bigasterisk.com/show/dance2010/song9/subterm/st1> <http://www.w3.org/2000/01/rdf-schema#label> "st1".
+<http://light9.bigasterisk.com/show/dance2010/song9/subterm/st1> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://light9.bigasterisk.com/Subterm>.
+<http://light9.bigasterisk.com/show/dance2010/song9/subterm/st1> <http://light9.bigasterisk.com/expression> "stack(st1(t), names=back2)".
+<http://light9.bigasterisk.com/show/dance2010/song9/subterm/st1> <http://light9.bigasterisk.com/sub> <http://light9.bigasterisk.com/sub/st1>.