diff --git a/f7.c b/f7.c
new file mode 100644
index 0000000..f9ba2f1
--- /dev/null
+++ b/f7.c
@@ -0,0 +1,5 @@
+#include "sounds.h"
+int main() {
+  sound_loop_1(sound_7,0);
+}
+// vim:set sw=2 sts=2 et ai:
diff --git a/main.c b/main.c
index 9d2a09c..52212dd 100644
--- a/main.c
+++ b/main.c
@@ -7,7 +7,7 @@
 #include "sounds.h"
 
 void usage(char* name, int exit_stat) {
-  fprintf(stderr, "Usage: %s [-f filename] < -s 1-6 >\n", name);
+  fprintf(stderr, "Usage: %s [-f filename] < -s 1-7 >\n", name);
   exit(exit_stat);
 }
 
@@ -37,7 +37,7 @@ int main(int ac, char* av[]) {
   }
 
   if (sound_choice == 0) {
-    fprintf(stderr, "ERROR: pleaese choice a sound (currently 1-6)\n");
+    fprintf(stderr, "ERROR: pleaese choice a sound (currently 1-7)\n");
     usage(av[0], EXIT_FAILURE);
   }
 
@@ -62,6 +62,9 @@ int main(int ac, char* av[]) {
     case 6:
       sound_loop_1(sound_6, 0);
       break;
+    case 7:
+      sound_loop_1(sound_7, 0);
+      break;
   }
 
   exit(EXIT_SUCCESS);
diff --git a/sounds.c b/sounds.c
index aea0962..e45097f 100644
--- a/sounds.c
+++ b/sounds.c
@@ -48,4 +48,10 @@ int sound_6(int t) {
   return ((30000000000/(y)&1)*35+(x)*y/400000000+((t>>8^t>>10|1>>14|x)&63));
 }
 
+int sound_7(int t) {
+  int i;
+  i=t<<2*(t^t*2);
+  return (((t&(t>>i)))^(t*("salve munde"[t>>13&7]&15))/12&32);
+}
+
 // vim:set sw=2 sts=2 et ai:
diff --git a/sounds.h b/sounds.h
index 79189ed..c5405fc 100644
--- a/sounds.h
+++ b/sounds.h
@@ -9,6 +9,7 @@ int sound_3(int t);
 int sound_4(int t);
 int sound_5(int t);
 int sound_6(int t);
+int sound_7(int t);
 
 #endif