--- a/testpl.c	Thu Oct 11 16:00:46 2012 +0300
+++ b/testpl.c	Thu Oct 11 16:00:55 2012 +0300
@@ -221,22 +221,40 @@
 
     // okay, main loop here ... "play" module and print out info
     printf("----------------------------------------------------\n");
+    SDL_LockAudio();
     SDL_PauseAudio(0);
-    while (plr->isPlaying)
+    SDL_UnlockAudio();
+    BOOL playing = TRUE;
+    while (playing)
     {
-        int r = plr->row;
-        while (r == plr->row && plr->isPlaying)
+        JSSPattern *pattern;
+        int currRow, prevRow;
+
+        JSS_LOCK(plr);
+        currRow = prevRow = plr->row;
+        JSS_UNLOCK(plr);
+
+        while (currRow == prevRow && playing)
+        {
+            JSS_LOCK(plr);
+            currRow = plr->row;
+            playing = plr->isPlaying;
+            pattern = plr->pattern;
+            JSS_UNLOCK(plr);
             SDL_Delay(50);
+        }
 
-        printRow(stdout, plr->pattern, plr->row);
-        printf("\n");
+        if (playing)
+        {
+            printRow(stdout, pattern, currRow);
+            printf("\n");
+        }
     }
     
     printf("----------------------------------------------------\n");
 
+    SDL_LockAudio();
     SDL_PauseAudio(1);
-
-    SDL_LockAudio();
     jmpClose(plr);
     jvmClose(dev);
     jssFreeModule(mod);