Added a README file and updated some code (flake8 + help message)

README.md

@@ -0,0 +1,51 @@
+(Bad) Artificial Song Generator
+===============================
+
+This is just a simple C code to handle wave files (see files wave_stuf.* for the functions) and a simple application to generating purely artificial sounds (just by creating a wave file with values from a sine wave at the good frequency to make a note.
+
+### Included files are :
+
+* _examples_ folder with some examples music sheets and the resulting generated wave files
+* _generateur.c_ which is the main program
+* _generateur_partition.py_ which is just a simple program to generate basic music sheet to use with the main program
+* _wave_stuff.*_ which are the functions to handle wave files
+
+## Usage of the main program
+
+The main program should be compiled using the makefile. 
+
+To use it, just run from command line :
+<code>generateur.out partition output.wav bpm silence</code> where 
+
+* _partition_ is the path to the music sheet you want to generate
+* _output.wav_ is the resulting wave files
+* _bpm_ is the speed of the song (in bpm)
+* _silence_ is an integer that should be set to 1 to add silences between notes
+
+## Usage of the basic music sheet generator
+
+This program allows you to write a simple music sheet without always looking for the correspondance between note and frequency. It is very basic and only allows you to use notes amongst :
+
+* RE, MI, FA, SOL, LA, SI, DO (where LA is 440Hz)
+* RE2, MI2, FA2, SOL2, LA2, SI2, DO2 (where LA is 880Hz).
+
+Length is any integer you want. It will define the length of the note (play with both length and bpm params to get what you want).
+
+You can use the -o (--output) option with a filename as argument to store the generated music sheet to this specific file.
+
+## License
+### TLDR;
+	I don't give a damn to anything you can do using this code. It would just be nice to
+	quote where the original code comes from.
+
+
+--------------------------------------------------------------------------------
+  	"THE NO-ALCOHOL BEER-WARE LICENSE" (Revision 42):
+  
+  	Phyks (phyks@phyks.me) wrote this file. As long as you retain this notice you
+ 	 can do whatever you want with this stuff (and you can also do whatever you want
+ 	 with this stuff without retaining it, but that's not cool... :/ ). If we meet some 
+ 	 day, and you think this stuff is worth it, you can buy me a <del>beer</del> soda 
+ 	 in return.
+  																			Phyks
+---------------------------------------------------------------------------------

generateur.c

@@ -63,7 +63,7 @@ int main(int argc, char **argv)
 {
   if (argc < 5)
     {
-      fprintf(stderr,"Usage: %s partition output.wav bpm silence\n",argv[0]);
+      fprintf(stderr,"Usage: %s partition output.wav bpm silence\nsilence should be 1 to add silence between notes.\n",argv[0]);
       return 0;
     }
     

generateur_partition.py

@@ -12,18 +12,25 @@ except getopt.GetoptError:
 for opt, arg in opts:
     if opt in ("-h", "--help"):
         print("Music sheet generator for the sound player. Usage :")
-        print("-h \t --help \t Displays this help message")
+        print("-h \t\t --help \t Displays this help message")
         print("-o file \t --output file \t Save the generated music sheet to "
               "the specified file")
 
+        print("\nAllowed values for notes are RE, MI, FA, SOL, LA, SI, DO"
+              "(corresponding to LA = 440Hz) and RE2, MI2, FA2, SOL2, LA2, "
+              "SI2, DO2 (corresponding to LA2 = 880Hz)")
+
+        print("\nTo quit, just enter \"quit\" as note")
+        sys.exit()
+
     elif opt in ("-o", "--output"):
         output = arg
 
 
 continue_while = True
 notes = {"RE": 294, "MI": 330, "FA": 349, "SOL": 392, "LA": 440, "SI": 494,
-         "DO": 523, "RE2": 587, "MI2": 659, "FA2": 699, "SOL2": 794, "LA2": 880,
+         "DO": 523, "RE2": 587, "MI2": 659, "FA2": 699, "SOL2": 794,
-         "SI2": 988}
+         "LA2": 880, "SI2": 988}
 partition = ''
 
 while continue_while: