Fix command line seed bug loading PCM sound

src/samplesrc/maze.pla

@@ -470,11 +470,6 @@ else
     conio:textmode(40)
     hgrMode(hgrPage1)
     lz4Read("MAZE.SPLASH.LZ4", $2000, $4000, heapmark, heapmark + heapavail - 256)
-    ref = fileio:open("MAZE.PCM")
-    pcmlen = fileio:read(ref, heapmark, heapavail)
-    fileio:close(ref)
-    pcm = heapalloc(pcmlen)
-    pcmpage = pcmlen / 256
     seq = musicRead("MAZE.SEQ")
     musicPlay(seq, FALSE)
     musicGetKey(0, NULL)
@@ -501,6 +496,11 @@ else
     loop
     if toupper(getc) == 'Q'; conio:textmode(0); return; fin
 fin
+ref = fileio:open("MAZE.PCM")
+pcmlen = fileio:read(ref, heapmark, heapavail)
+fileio:close(ref)
+pcm = heapalloc(pcmlen)
+pcmpage = pcmlen / 256
 conio:textmode(40)
 conio:viewport(0, 20, 40, 4)
 hgrMode(hgrPage1)