diff --git a/show/dance2018/song4.n3 b/show/dance2018/song4.n3
--- a/show/dance2018/song4.n3
+++ b/show/dance2018/song4.n3
@@ -13,8 +13,8 @@ show:song4 :note song:n0, song:n1 .
 song:n0 a :Note; :curve song:n0c0; :effectClass effect:qfill; :originTime 4.1842e+01 .
 
 song:n0c0 a :Curve; :attr :strength; :point song:n0c0p0, song:n0c0p1, song:n0c0p2, song:n0c0p3 .
-song:n0c0p0 :time -3.9595e+01; :value 0e+00 .
-song:n0c0p1 :time -3.5525e+01; :value 1e+00 .
+song:n0c0p0 :time -3.7532e+01; :value 0e+00 .
+song:n0c0p1 :time -3.3462e+01; :value 1e+00 .
 song:n0c0p2 :time 1.80525e+02; :value 1e+00 .
 song:n0c0p3 :time 1.83606e+02; :value 0e+00 .
 
@@ -22,7 +22,7 @@ song:n1 a :Note; :curve song:n1c1; :effe
      :originTime 1.530205e+02 .
 
 song:n1c1 a :Curve; :attr :strength; :point song:n1c1p1, song:n1c1p2, song:n1c1p3, song:n1c1p4 .
-song:n1c1p1 :time -1.50154e+02; :value 0e+00 .
-song:n1c1p2 :time -1.46773e+02; :value 1e+00 .
+song:n1c1p1 :time -1.48638e+02; :value 0e+00 .
+song:n1c1p2 :time -1.45257e+02; :value 1e+00 .
 song:n1c1p3 :time 6.9357e+01; :value 1e+00 .
 song:n1c1p4 :time 7.2406e+01; :value 0e+00 .