diff --git a/bin/ascoltami b/bin/ascoltami
--- a/bin/ascoltami
+++ b/bin/ascoltami
@@ -29,7 +29,7 @@ from twisted.internet.error import Canno
 from twisted.web import xmlrpc, server
 
 import run_local
-from light9 import networking, showconfig
+from light9 import networking, showconfig, wavelength
 
 from pympd import Mpd
 
@@ -138,7 +138,9 @@ class Player:
         reactor.callLater(.05, self.pollStatus)
 
     def set_total_time(self, song_path):
-        raise NotImplementedError("get lengther.py from semprini")
+        # currently only good for .wav
+        p = os.path.join(showconfig.musicDir(), song_path)
+        self.total_time.set(wavelength.wavelength(p))
 
     def play(self, song_path):
     
@@ -150,13 +152,6 @@ class Player:
         self.filename_var.set(song_path)
 
         self.set_total_time(song_path)
-##         # jump to song 1 to get its total_time
-##         self.mpd.seek(seconds=0, song=1)
-##         self.mpd.pause()
-##         self.mpd.status().addCallback(self.play2)
-
-##     def play2(self, stat):
-##         self.total_time.set(stat.time_total)
         self.mpd.seek(seconds=0, song=0)
 
     def check_autopause(self):