diff --git a/audio.wav b/audio.wav
index e12b9b6..518fc1e 100644
Binary files a/audio.wav and b/audio.wav differ
diff --git a/cleaned_sp.py b/cleaned_sp.py
index ab3a714..f206a77 100644
--- a/cleaned_sp.py
+++ b/cleaned_sp.py
@@ -180,7 +180,7 @@ def keep_highest(song_name, offset, songlen, segsize, count, output_name, minfre
 
                 a_ampl = 0
 
-    # -------------------------------------------- Clean with freq -------------------------------------------- #
+    # -------------------------------------------- Compute freqs -------------------------------------------- #
 
     ssize_0 = segsize/3
     locf = [] # frequencies
@@ -209,6 +209,32 @@ def keep_highest(song_name, offset, songlen, segsize, count, output_name, minfre
 
         locf.append(fmax)
     
+    # -------------------------------------------- Merge -------------------------------------------- #
+    
+    k = 0
+    while(k < len(locs)):
+        delta_t = 0
+        if(type(loct[k]) == float):
+            delta_t += loct[k]
+        else:
+            delta_t += (loct[k][0] + loct[k][1])/2
+        
+        if(type(loct[k-1]) == float):
+            delta_t -= loct[k-1]
+        else:
+            delta_t -= (loct[k-1][0] + loct[k-1][1])/2
+        if(k > 0 and np.abs(delta_t) < segsize and np.abs(locs[k] - locs[k-1]) < 50 and is_note_within(locf[k], locf[k-1])):
+            loct[k-1] = [loct[k-1], loct[k]]
+            locs[k-1] = (locs[k-1] + locs[k])/2
+            loct[k] = -1 
+            locs[k] = -1
+            locf[k] = -1
+            loct.remove(-1)
+            locs.remove(-1)
+            locf.remove(-1)
+        k += 1
+
+
     # -------------------------------------------- Plot -------------------------------------------- #
 
     plt_loct_all = []
@@ -228,10 +254,11 @@ def keep_highest(song_name, offset, songlen, segsize, count, output_name, minfre
             plt_slids.append(locs[i])
             plt_slids.append(locs[i])
 
-    plt.plot(new_new_t, new_new_amps, "y-")
-    plt.plot(plt_loct, plt_locs, "ro")
-    plt.plot(plt_slidt, plt_slids, "go")
-    plt.plot(plt_loct_all, locf, "mo")
+    plt.plot(new_new_t, new_new_amps, "y-", label="amplitude (ua)")
+    plt.plot(plt_loct, plt_locs, "ro", label="circles")
+    plt.plot(plt_slidt, plt_slids, "go", label="sliders")
+    plt.plot(plt_loct_all, locf, "mo", label="frequencies (Hz)")
+    plt.legend(loc="upper left")
             
     '''plt.plot(new_times, new_freqs)
     plt.plot(new_times, [elt*1000/mx for elt in new_ampls])
@@ -241,7 +268,7 @@ def keep_highest(song_name, offset, songlen, segsize, count, output_name, minfre
     
     # -------------------------------------------- Write -------------------------------------------- #
 
-    return (loct, locs) # amplitude result, sliders and frequency result
+    return (loct, locs)
 
 def convert_to_wav(song_name:str, output_file="audio.wav") -> str:
     """
@@ -306,14 +333,14 @@ BPM = 149.3
 SEGSIZE = 1/(BPM/60)
 wavved_song = convert_to_wav("songs/ctype.mp3")
 '''
-
+'''
 # tetris_2
 SONG_LEN = 10
 OFFSET = 0
 BPM = 157
 SEGSIZE = 1/(BPM/60)
 wavved_song = convert_to_wav("songs/tetris_2.wav")
-
+'''
 '''
 # test
 SONG_LEN = 1
@@ -331,20 +358,20 @@ wavved_song = convert_to_wav("songs/furioso melodia.mp3")
 '''
 '''
 # E
-SONG_LEN = 30
+SONG_LEN = 15
 OFFSET = 2.641
 BPM = 155
 SEGSIZE = 1/(BPM/60)
 wavved_song = convert_to_wav("songs/rushe.mp3")
 '''
-'''
+
 # Tsubaki
 SONG_LEN = 10
 OFFSET = 35.659
 BPM = 199
 SEGSIZE = 1/(BPM/60)
 wavved_song = convert_to_wav("songs/TSUBAKI.mp3")
-'''
+
 '''
 # death
 SONG_LEN = 8