diff --git a/engine.tal b/engine.tal
index 6cb2c0d..bc50d83 100644
--- a/engine.tal
+++ b/engine.tal
@@ -1,3 +1,7 @@
+( TODO 
+commmands
+song playback
+multiple channels )
 @k-tick
 &run
   .kalama/tick LDZ #01 ADD DUP
@@ -5,15 +9,17 @@
   .kalama/tick STZ
   RTN
   &play
+  POP
   #ff .kalama/tick STZ
   .kalama/line LDZ #01 ADD DUP
   DUP #00 SWP #0003 MUL2
-  #00 ;k-get-pattern/run JSR2 ADD2 ;k-play-line/run JSR2
+  #00 ;k-get-pattern/run JSR2 ADD2 #00 ;k-play-line/run JSR2
   #0f EQU ,&next JCN 
   .kalama/line STZ
   RTN
   &next
   ( TODO next pattern )
+  POP
   #ff .kalama/line STZ
 RTN
 
@@ -60,8 +66,10 @@ RTN
 POPr
 RTN
 
-@k-play-line ( *l -- )
+@k-play-line ( *l channel -- )
+&chan $1
 &run
+,&chan STR
 LDA DUP
   #00 EQU ,&rest JCN
   .Audio0/pitch DEO ( TODO use correct channel, effects )
diff --git a/player.tal b/player.tal
index 7a982ba..e79d059 100644
--- a/player.tal
+++ b/player.tal
@@ -30,12 +30,12 @@
   &tick $1
   &line $1
   &speed $1
+  &songpos $2 ( position in song table )
 
 ( program )
 
 |0100 ( -> )
 
-	( theme ) 
 	#0fe5 .System/r DEO2 
 	#0fc5 .System/g DEO2 
 	#0f25 .System/b DEO2
@@ -87,27 +87,27 @@ RTN
 ~engine.tal
 
 @module
-88 02 02 ( file header - speed 8, loop on, 2 patterns, 2 instruments )
+8f 02 02 ( file header - speed 8, loop on, 2 patterns, 2 instruments )
 0008 ( size )
 00 00 ff ff
 00 01 ff ff ( song table, 2 rows )
 ( pattern 00 )
-3c 02 00 ( C-3 I00 )
-00 00 00
+54 02 00 ( C-3 I00 )
+52 00 00
+54 00 00
+4f 00 00
+4b 00 00
+4f 00 00 
+48 00 00
+ff 00 00
+54 02 00
+52 00 00
+54 00 00
+4f 00 00
+4b 00 00
+4f 00 00 
+48 00 00
 ff 00 00
-00 00 00
-3c 00 00
-00 00 00 
-00 00 00
-00 00 00
-3c 00 00
-00 00 00
-00 00 00
-00 00 00
-3c 00 00
-00 00 00
-00 00 00
-00 00 00
 ( pattern 01 )
 ff 00 00
 3c 02 00 ( C-3 I00 )