diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -14,7 +14,7 @@
 
 ## 0.2.0.0 -- 2020-09-07
 
-* Second version. Added new functions diverse1, diverse1s, diverse2 to the module. Changed the dependency boundaries for uniqueness-periods-vector. Some minor 
+* Second version. Added new functions diverse1, diverse1s, diverse2 to the module. Changed the dependency boundaries for uniqueness-periods-vector. Some minor
 documentation improvements.
 
 ## 0.3.0.0 -- 2020-09-09
@@ -24,3 +24,8 @@
 ## 0.3.1.0 -- 2020-09-09
 
 * Third version revised. Changed the dependency bounds of uniqueness-periods-vector package.
+
+## 0.4.0.0 -- 2020-10-08
+
+* Fourth version. Added a new module Languages.UniquenessPeriods.Vector.PropertiesSyllables with Ukrainian syllables related metrices. Added new
+dependencies of mmsyn7s and phonetic-languages-rhythmicity.
diff --git a/Languages/UniquenessPeriods/Vector/PropertiesSyllables.hs b/Languages/UniquenessPeriods/Vector/PropertiesSyllables.hs
new file mode 100644
--- /dev/null
+++ b/Languages/UniquenessPeriods/Vector/PropertiesSyllables.hs
@@ -0,0 +1,42 @@
+-- |
+-- Module      :  Languages.UniquenessPeriods.Vector.PropertiesSyllables
+-- Copyright   :  (c) OleksandrZhabenko 2020
+-- License     :  MIT
+-- Stability   :  Experimental
+-- Maintainer  :  olexandr543@yahoo.com
+--
+-- Generalization of the functionality of the DobutokO.Poetry.Norms
+-- and DobutokO.Poetry.Norms.Extended modules
+-- from the @dobutokO-poetry@ package. Uses syllables information.
+
+{-# LANGUAGE CPP, BangPatterns #-}
+
+module Languages.UniquenessPeriods.Vector.PropertiesSyllables where
+
+#ifdef __GLASGOW_HASKELL__
+#if __GLASGOW_HASKELL__>=710
+/* code that applies only to GHC 7.10.* and higher versions */
+import GHC.Base (mconcat)
+#endif
+#endif
+import qualified Data.Vector as V
+import String.Languages.UniquenessPeriods.Vector
+import Languages.Rhythmicity
+import MMSyn7.Syllable
+
+#ifdef __GLASGOW_HASKELL__
+#if __GLASGOW_HASKELL__==708
+/* code that applies only to GHC 7.8.* */
+mconcat = concat
+#endif
+#endif
+
+rhythmicity0 :: String -> Float
+rhythmicity0 xs
+ | null xs = 0.0
+ | otherwise = evalRhythmicity23 . mconcat . syllableDurations . syllablesUkrP $ xs
+
+rhythmicityK :: Float -> Float -> String -> Float
+rhythmicityK k2 k3 xs
+ | null xs = 0.0
+ | otherwise = evalRhythmicity23K k2 k3 . mconcat . syllableDurations . syllablesUkrP $ xs
diff --git a/uniqueness-periods-vector-properties.cabal b/uniqueness-periods-vector-properties.cabal
--- a/uniqueness-periods-vector-properties.cabal
+++ b/uniqueness-periods-vector-properties.cabal
@@ -3,7 +3,7 @@
 -- http://haskell.org/cabal/users-guide/
 
 name:                uniqueness-periods-vector-properties
-version:             0.3.1.0
+version:             0.4.0.0
 synopsis:            Metrices for the maximum element for the uniqueness-periods-vector packages family.
 description:         Metrices for the maximum element for the uniqueness-periods-vector packages family. Generalization of the DobutokO.Poetry.Norms and DobutokO.Poetry.Norms.Extended modules from dobutokO-poetry package.
 homepage:            https://hackage.haskell.org/package/uniqueness-periods-vector-properties
@@ -18,9 +18,9 @@
 cabal-version:       >=1.10
 
 library
-  exposed-modules:     Languages.UniquenessPeriods.Vector.Properties
+  exposed-modules:     Languages.UniquenessPeriods.Vector.Properties, Languages.UniquenessPeriods.Vector.PropertiesSyllables
   -- other-modules:
-  -- other-extensions:
-  build-depends:       base >=4.7 && <4.15, vector >=0.11 && <0.14, uniqueness-periods-vector >=0.3 && <1
+  other-extensions:    CPP, BangPatterns
+  build-depends:       base >=4.7 && <4.15, vector >=0.11 && <0.14, uniqueness-periods-vector >=0.3 && <1, mmsyn7s >=0.9 && <1, phonetic-languages-rhythmicity >=0.1.0.1 && <1
   -- hs-source-dirs:
   default-language:    Haskell2010