diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..596cff8
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+.*.swp
+*~
diff --git a/audio.c b/audio.c
index b987b85..c33a68d 100644
--- a/audio.c
+++ b/audio.c
@@ -1,20 +1,36 @@
 
 #include <stdio.h>
 
-const char* audio_dev = "/dev/audio";
-FILE* audio;
+#include "audio.h"
 
-void init(char* dev_file_name) {
-  if (dev_file_name != NULL) {
-    audio = fopen(dev_file_name, "a");
+//const char* audio_dev = "/dev/audio";
+FILE* audio = NULL;
+int quiet = 0;
+
+void init(struct s_config s) {
+  if (s.filename != NULL) {
+    audio = fopen(s.filename, "a");
+  }
+  if (s.quiet == 1) {
+    quiet = 1;
   } else {
-    audio = stdout;
+    quiet = 0;
   }
 }
 
 void p(int i) {
-  //fputc(i, audio);
-  putchar(i);
+  if (audio != NULL) {
+    fputc(i, audio);
+  }
+  if (!quiet) {
+    putchar(i);
+  }
+}
+
+void quit() {
+  if (audio != stdout) {
+    fclose(audio);
+  }
 }
 
 // vim:set sw=2 sts=2 et ai:
diff --git a/audio.h b/audio.h
index 49d63c0..7632ccd 100644
--- a/audio.h
+++ b/audio.h
@@ -1,4 +1,16 @@
 
-void init();
+#ifndef BITORC_AUDIO_H
+#define BITORC_AUDIO_H
+
+struct s_config {
+  int quiet;
+  char* filename;
+};
+
+void init(struct s_config s);
 void p(int i);
+void quit();
 
+#endif
+
+// vim:set sw=2 sts=2 et ai:
diff --git a/main.c b/main.c
index a2e2899..9d2a09c 100644
--- a/main.c
+++ b/main.c
@@ -1,9 +1,70 @@
 #include <stdio.h>
+#include <stdlib.h>
 #include <unistd.h>
+#include <string.h>
 
-int main(int ac, char** av) {
-  //init();
-  return 0;
+#include "audio.h"
+#include "sounds.h"
+
+void usage(char* name, int exit_stat) {
+  fprintf(stderr, "Usage: %s [-f filename] < -s 1-6 >\n", name);
+  exit(exit_stat);
+}
+
+int main(int ac, char* av[]) {
+  int opt;
+  int sound_choice = 0;
+  //int quiet = 0;
+  //char* filename = NULL;
+  struct s_config s;
+  
+  while ((opt = getopt(ac, av, "hf:s:q")) != -1) {
+    switch (opt) {
+      case 'q':
+        s.quiet = 1;
+        break;
+      case 's':
+        sound_choice = atoi(optarg);
+        break;
+      case 'f':
+        s.filename = optarg;
+        break;
+      case 'h':
+        usage(av[0], EXIT_SUCCESS);
+      default:
+        usage(av[0], EXIT_FAILURE);
+    }
+  }
+
+  if (sound_choice == 0) {
+    fprintf(stderr, "ERROR: pleaese choice a sound (currently 1-6)\n");
+    usage(av[0], EXIT_FAILURE);
+  }
+
+  init(s);
+
+  switch (sound_choice) {
+    case 1:
+      sound_loop_1(sound_1, 0);
+      break;
+    case 2:
+      sound_loop_1(sound_2, 0);
+      break;
+    case 3:
+      sound_loop_1(sound_3, 0);
+      break;
+    case 4:
+      sound_loop_1(sound_4, 0);
+      break;
+    case 5:
+      sound_loop_1(sound_5, 0);
+      break;
+    case 6:
+      sound_loop_1(sound_6, 0);
+      break;
+  }
+
+  exit(EXIT_SUCCESS);
 }
 
 // vim:set sw=2 sts=2 et ai:
diff --git a/sounds.h b/sounds.h
index cb5f5b4..79189ed 100644
--- a/sounds.h
+++ b/sounds.h
@@ -1,4 +1,7 @@
 
+#ifndef BITORC_SOUNDS_H
+#define BITORC_SOUNDS_H
+
 void sound_loop_1(int (*sp)(int i), int t);
 int sound_1(int t);
 int sound_2(int t);
@@ -7,4 +10,6 @@ int sound_4(int t);
 int sound_5(int t);
 int sound_6(int t);
 
+#endif
+
 // vim:set sw=2 sts=2 et ai: