diff --git a/FoxDot/lib/Extensions/PArp.py b/FoxDot/lib/Extensions/PArp.py
new file mode 100644
index 00000000..4b327136
--- /dev/null
+++ b/FoxDot/lib/Extensions/PArp.py
@@ -0,0 +1,64 @@
+    from ..Patterns import P, Pattern
+    from ... import Scale
+
+    def PArp(seq, index=0):
+        ### Return an arpeggio Pattern
+        ### from a dictionnary inspired by the BlueARP VST
+        ### e.g.  PArp([k1, k2, k3, k4], index)
+        ###       PArp([0,1,2], 9) -> P[-7,7,0,1, -7,7,0,2]
+        arp = []
+        oc = len(Scale.default)   ### get Default Scale octave length
+        k1 = k2 = k3 = k4 = P[seq[0]]  ### for different sequence lenght
+        if len(seq) > 1:
+            k2 = P[seq[1]]
+        if len(seq) > 2:
+            k3 = P[seq[2]]
+        if len(seq) > 3:
+            k4 = P[seq[3]]
+        ### Dict with {index: [[note_index], [nbr of octave]]}
+        arpdict = {
+        # Standard Arp 3K
+        0 : [[k1,k2,k3,k1, k2,k3,k1,k2, k3,k1,k2,k3, k1,k2,k3,k2], [0]],
+        1 : [[k3,k2,k1,k3, k2,k1,k3,k2, k1,k3,k2,k1, k3,k2,k1,k2], [0]],
+        2 : [[k1,k2,k3,k2, k1,k2,k3,k2, k1,k2,k3,k2, k1,k3,k1,k2], [0]],
+        3 : [[k3,k2,k1,k2, k3,k2,k1,k2, k3,k2,k1,k2, k3,k2,k3,k1], [0]],
+        4 : [[k2,k3,k1,k3, k2,k3,k1,k3], [0,-1,0,-1, 0,-1,0,-1]],
+        5 : [[k1,k3,k2,k1, k1,k1,k2,k3], [-1,0,0,-1, 0,-1,0,0]],
+        6 : [[k1,k1,k3,k1, k1,k2,k1,k3], [-1,-5,0,-1, 0,0,-1,0]],
+        7 : [[k3,k1,k2,k1, k3,k1,k2,k1], [0]],
+        8 : [[k3,k2,k1,k3, k2,k1,k3,k2], [0]],
+        9 : [[k1,k1,k1,k2, k1,k1,k1,k3], [-1,1,0,0, -1,1,0,0]],
+        # More complex Arp 3K
+        10 : [[k3,k2,k1,k3, k2,k1,k3,k2, k1,k3,k1,k3, k2,k1,k3,k2], [-1,0,0,-1, 0,0,-1,0, 0,-1,0,-1, 0,0,-1,0]],
+        11 : [[k2,k1,k1,k3, k1,k1,k3,k1, k2,k1,k1,k3, k1,k1,k3,k1], [0,-1,0,0, -1,0,0,0]],
+        12 : [[k2,k1,k1,k3, k1,k1,k3,k1, k2,k1,k1,k3, k1,k1,k3,k1], [0,-2,-1,0, -2,-1,0,-1, 0,-2,-1,0, -1,-2,0,-1]],
+        13 : [[k1,k1,k1,k1, k1,k1,k1,k1, k2,k2,k1,k1, k1,k1,k1,k1], [0,0,-1,-5, -1,-5,0,0, 0,0,-1,-5, 0,0,-1,0]],
+        14 : [[k1,k1,k2,k1, k1,k2,k1,k1, k2,k1,k1,k2, k1,k1,k2,k1], [-2,-1,0,-2, -1,0,-2,-1, 0,-2,-1,0, -2,-1,0,-1]],
+        15 : [[k1,k1,k2,k3, k1,k1,k2,k3], [-1,0,0,0]],
+        16 : [[k3,k1,k2,k1, k2,k1,k1,k3, k1,k1,k2,k1, k2,k1,k1,k1], [0,-2,0,-2, 0,-2,-1,0, -2,-1,0,-2, 0,-2,-1,-2]],
+        17 : [[k3,k1,k2,k1, k1,k2,k1,k3, k1,k2,k1,k1, k2,k2,k1,k2], [0,-1,0,-2, -1,0,-2,0, -1,0,-2,-1, 0,0,-2,0]],
+        # 2K Arp Scale
+        20 : [[k1,k2+2,k2+3,k1, k2+5,k2+4,k1,k2, k2+2,k1,k2,k2+2, k1,k2+1,k1,k2], [-1,0,0,-1, 0,0,-1,0, 0,-1,0,0, -1,0,-1,0]],
+        21 : [[k1,k1,k2+5,k1, k2+5,k1,k1,k2+4, k1,k1,k2+5,k1, k2+7,k1,k1,k2+4], [0,-1,0,-1, 0,0,-1,0, -1,0,0,-1, 0,-1,0,0]],
+        22 : [[k1,k1,k2+5,k1, k2+5,k1,k1,k2+4, k1,k1,k2+5,k1, k2+7,k1,k1,k2+4], [-1,-1,0,-1, 0,-1,-1,0 ,-1,-1,0,-1, 0,-1,-1,0]],
+        23 : [[k1,k1,k2+2,k1, k2+6,k1,k2+5,k1, k1,k2,k1,k1, k2+5,k1,k1,k2], [-1,0,0,-1, 0,-1,0,0, -1,0,-1,0, 0,-1,0,0]],
+        # 3k Compldex Arp 32 steps
+        30 : [[k1,k1,k2,k1, k3,k1,k1,k1, k2,k1,k3,k1, k1,k1,k2,k1, k3,k1,k1,k1, k2,k1,k3,k1, k1,k1,k2,k1, k3,k1,k3,k2], [0,-1,0,-1, 0,-1,0,-1, 0,-1,0,-1, 0,-1,0,-1,  0,-1,0,-1, 0,-1,0,-1, 0,-1,0,-1, 0,-1,0,0]],
+        # 4K Arp
+        40 : [[k1,k2,k3,k4, k2,k3,k4,k1, k3,k4,k1,k2, k4,k1,k2,k3], [0,0,0,0, 0,0,0,1, 0,0,1,1, 0,1,1,1]],
+        41 : [[k4,k3,k2,k1, k3,k2,k1,k4, k2,k1,k4,k3, k1,k4,k3,k2], [1,1,1,1, 1,1,1,0, 1,1,0,0, 1,0,0,0]],
+        42 : [[k1,k2,k3,k1, k3,k2,k3,k4, k1,k4,k3,k1, k1,k2,k1,k3], [-1,0,0,-1, 0,0,0,0, -1,0,0,-1, 0,0,-1,0]],
+        43 : [[k1,k2,k3,k4, k2,k3,k4,k1, k3,k4,k1,k2, k4,k1,k2,k3, k3,k2,k1,k4, k2,k1,k4,k3, k1,k4,k3,k2, k4,k3,k2,k1], [0,0,0,0, 0,0,0,1, 0,0,1,1, 0,1,1,1, 1,1,1,0, 1,1,0,0, 1,0,0,0, 0,0,0,0]],
+        44 : [[k1,k2,k1,k4, k2,(k2,k1),k3,k1, (k1,k1),k2,k1,(k1,k1), k2,k1,k3,k1], [-1,0,-1,-1, 0,(-1,-5),-1,-1, (-1,-5),0,-1,(-1,-5), 0,-1,0,-1]],
+        # Simple Arp
+        50 : [[k1,k2,k1,k1, k2,k1,k1,k1], [0,0,1,0, 0,1,0,1]],
+        51 : [[k1,k2,k3,k2+4, k1,k2+4, k3,k2], [0,0,0,0, 1,0,0,0]],
+        52 : [[k1,k2,(k1,k2,k3),k2], [0]],
+        53 : [[k1,k2,k1,k3, k1,k2,k1,k1], [0,0,0,0, 0,0,0,1]],
+        54 : [[k1,k2,k3,k1, k2,k1,k3,k1], [0,0,0,1, 0,0,0,1]],
+        }
+        if (index in arpdict):
+        	arp = P[arpdict[index][0]] + P[arpdict[index][1]] * oc
+        else:
+        	arp = seq
+        return Pattern(arp)