Update git submodules

* Update docs/submodules/music.git from branch 'master'
  to 4cd2bc6c697bda26757aa41662c4c4f5b1b63eff
  - Merge "lowered some code smells"
  - lowered some code smells
    
    lowered some code smells
    
    Issue-ID: PORTAL-869
    Change-Id: Ia92c254b9fb9ddfe9db63889808eea07557c198a
    Signed-off-by: Indrijeet Kumar <indriku1@in.ibm.com>
    
diff --git a/docs/submodules/music.git b/docs/submodules/music.git
index d2044d7..4cd2bc6 160000
--- a/docs/submodules/music.git
+++ b/docs/submodules/music.git
@@ -1 +1 @@
-Subproject commit d2044d7b9b30d922d2717b1952075c26bce91f04
+Subproject commit 4cd2bc6c697bda26757aa41662c4c4f5b1b63eff