diff --git a/media/music/race remix.ogg b/media/music/race remix.ogg
new file mode 100644
index 00000000..b23372d7
Binary files /dev/null and b/media/music/race remix.ogg differ
diff --git a/media/music/sakura.ogg b/media/music/sakura.ogg
new file mode 100644
index 00000000..a59f22ca
Binary files /dev/null and b/media/music/sakura.ogg differ
diff --git a/parts/modes/master_ph.lua b/parts/modes/master_ph.lua
index 591d9338..92a83821 100644
--- a/parts/modes/master_ph.lua
+++ b/parts/modes/master_ph.lua
@@ -2,7 +2,7 @@ return{
     color=COLOR.black,
     env={
         eventSet='master_ph',
-        bg='blockspace',bgm='super7th',
+        bg='blockspace',bgm='race remix',
     },
     slowMark=true,
     score=function(P)return{P.result=='win'and 260 or P.modeData.pt,P.stat.time}end,
diff --git a/parts/modes/netBattle.lua b/parts/modes/netBattle.lua
index d39be421..51243578 100644
--- a/parts/modes/netBattle.lua
+++ b/parts/modes/netBattle.lua
@@ -20,6 +20,7 @@ return{
         GAME.modeEnv.task=marginTask
 
         local L=TABLE.copy(netPLY.list)
+        print("#1:"..#L)
         local N=1
         for i,p in next,L do
             if p.uid==USER.uid then
@@ -38,5 +39,9 @@ return{
                 N=N+1
             end
         end
+        print("N:"..N)
+        for i=1,#PLAYERS do
+            print("(s)id:"..PLAYERS[i].id.."("..PLAYERS[i].sid..")")
+        end
     end,
 }
diff --git a/parts/modes/pctrain_l.lua b/parts/modes/pctrain_l.lua
index 5cef881a..39560654 100644
--- a/parts/modes/pctrain_l.lua
+++ b/parts/modes/pctrain_l.lua
@@ -9,7 +9,7 @@ return{
         freshLimit=15,
         RS="SRS",
         eventSet='pctrain_l',
-        bg='rgb',bgm='oxygen',
+        bg='rgb',bgm='memory',
     },
     score=function(P)return{P.stat.pc,P.stat.time}end,
     scoreDisp=function(D)return D[1].." PCs   "..STRING.time(D[2])end,
diff --git a/parts/modes/pctrain_n.lua b/parts/modes/pctrain_n.lua
index 62768849..4161cb26 100644
--- a/parts/modes/pctrain_n.lua
+++ b/parts/modes/pctrain_n.lua
@@ -8,7 +8,7 @@ return{
         sequence='none',
         RS="SRS",
         eventSet='pctrain_n',
-        bg='rgb',bgm='oxygen',
+        bg='rgb',bgm='memory',
     },
     score=function(P)return{P.stat.pc,P.stat.time}end,
     scoreDisp=function(D)return D[1].." PCs   "..STRING.time(D[2])end,
diff --git a/parts/modes/ultra.lua b/parts/modes/ultra.lua
index c88bd8f6..9266cf6b 100644
--- a/parts/modes/ultra.lua
+++ b/parts/modes/ultra.lua
@@ -6,7 +6,7 @@ return{
         drop=60,lock=60,
         fall=20,
         eventSet='ultra',
-        bg='fan',bgm='memory',
+        bg='fan',bgm='sakura',
     },
     slowMark=true,
     score=function(P)return{P.stat.score}end,
diff --git a/parts/scenes/music.lua b/parts/scenes/music.lua
index 83e85f84..e4488b6a 100644
--- a/parts/scenes/music.lua
+++ b/parts/scenes/music.lua
@@ -19,6 +19,8 @@ local author={
     ["how feeling"]="V.A.",
     ["secret7th remix"]="柒栎流星",
     ["jazz nihilism"]="Trebor",
+    ["race remix"]="柒栎流星",
+    ["sakura"]="ZUN & C29H25N3O5",
 }
 
 local scene={}