diff --git a/download_server.py b/download_server.py
index a845b59031c2d17e18c652351791d32b81cd7b83..cc0505278897482520ff924bf231d8cb84b8f490 100644
--- a/download_server.py
+++ b/download_server.py
@@ -20,6 +20,17 @@ while True :
             
             data = load(f)
             for playlist in data :
+                
+                if playlist not in os.listdir("musics"):
+                    print("une nouvelle playlist a été ajoutée !")
+                    os.chdir("musics")
+                    os.mkdir(playlist)
+                    os.chdir("musics")
+                    os.mkdir("contents")
+                    with open("seen.json",'w') as f :
+                        f.write("[]")
+                    os.chdir("../..")
+
                 os.chdir("musics/"+playlist)
                 chn = 'https://www.googleapis.com/youtube/v3/playlistItems?part=snippet&maxResults=25&playlistId='+playlist+'&key='+KEY
                 requete = get(chn)
@@ -39,6 +50,8 @@ while True :
                     i += 1
                 os.chdir("../")
 
+                print("mise à jour de seen_videos ...")
+                print(seen_videos)
                 with open('seen.json','w') as f2 :
                     f2.write(dumps(seen_videos))