diff --git a/pkgs/development/libraries/haskell/event-list/default.nix b/pkgs/development/libraries/haskell/event-list/default.nix
new file mode 100644
index 000000000000..16b73d9bfb36
--- /dev/null
+++ b/pkgs/development/libraries/haskell/event-list/default.nix
@@ -0,0 +1,16 @@
+{ cabal, nonNegative, QuickCheck, transformers, utilityHt }:
+
+cabal.mkDerivation (self: {
+  pname = "event-list";
+  version = "0.1.0.2";
+  sha256 = "01j48871nijhkbqdsfvbvq01yr9b5a056fn03ccgazikfsd368ri";
+  isLibrary = true;
+  isExecutable = true;
+  buildDepends = [ nonNegative QuickCheck transformers utilityHt ];
+  meta = {
+    homepage = "http://code.haskell.org/~thielema/event-list/";
+    description = "Event lists with relative or absolute time stamps";
+    license = "GPL";
+    platforms = self.ghc.meta.platforms;
+  };
+})
diff --git a/pkgs/development/libraries/haskell/haskore/default.nix b/pkgs/development/libraries/haskell/haskore/default.nix
new file mode 100644
index 000000000000..7e3ebb6476bb
--- /dev/null
+++ b/pkgs/development/libraries/haskell/haskore/default.nix
@@ -0,0 +1,21 @@
+{ cabal, dataAccessor, eventList, haskellSrc, markovChain, midi
+, nonNegative, parsec, random, transformers, utilityHt
+}:
+
+cabal.mkDerivation (self: {
+  pname = "haskore";
+  version = "0.2.0.3";
+  sha256 = "0vg4m2cmy1fabfnck9v22jicflb0if64h0wjvyrgpn2ykb9wwbpa";
+  isLibrary = true;
+  isExecutable = true;
+  buildDepends = [
+    dataAccessor eventList haskellSrc markovChain midi nonNegative
+    parsec random transformers utilityHt
+  ];
+  meta = {
+    homepage = "http://www.haskell.org/haskellwiki/Haskore";
+    description = "The Haskore Computer Music System";
+    license = "GPL";
+    platforms = self.ghc.meta.platforms;
+  };
+})
diff --git a/pkgs/development/libraries/haskell/markov-chain/default.nix b/pkgs/development/libraries/haskell/markov-chain/default.nix
new file mode 100644
index 000000000000..5907fce4f176
--- /dev/null
+++ b/pkgs/development/libraries/haskell/markov-chain/default.nix
@@ -0,0 +1,14 @@
+{ cabal, random, transformers }:
+
+cabal.mkDerivation (self: {
+  pname = "markov-chain";
+  version = "0.0.3.2";
+  sha256 = "0shld9b6vdi5274wyhwpw5ggfm6xi5j7m3ag989bxarhrfzjxgdk";
+  buildDepends = [ random transformers ];
+  meta = {
+    homepage = "http://code.haskell.org/~thielema/markov-chain/";
+    description = "Markov Chains for generating random sequences with a user definable behaviour";
+    license = "GPL";
+    platforms = self.ghc.meta.platforms;
+  };
+})
diff --git a/pkgs/development/libraries/haskell/midi/default.nix b/pkgs/development/libraries/haskell/midi/default.nix
new file mode 100644
index 000000000000..e50843c6ff23
--- /dev/null
+++ b/pkgs/development/libraries/haskell/midi/default.nix
@@ -0,0 +1,21 @@
+{ cabal, binary, eventList, explicitException, monoidTransformer
+, nonNegative, QuickCheck, random, transformers, utilityHt
+}:
+
+cabal.mkDerivation (self: {
+  pname = "midi";
+  version = "0.2.1";
+  sha256 = "0i767y0835979s9i3wm8qwzh2awhhmfvhc5zvq2lkn8xlsp3wa6y";
+  isLibrary = true;
+  isExecutable = true;
+  buildDepends = [
+    binary eventList explicitException monoidTransformer nonNegative
+    QuickCheck random transformers utilityHt
+  ];
+  meta = {
+    homepage = "http://www.haskell.org/haskellwiki/MIDI";
+    description = "Handling of MIDI messages and files";
+    license = "GPL";
+    platforms = self.ghc.meta.platforms;
+  };
+})
diff --git a/pkgs/development/libraries/haskell/monoid-transformer/default.nix b/pkgs/development/libraries/haskell/monoid-transformer/default.nix
new file mode 100644
index 000000000000..d4e5962ec858
--- /dev/null
+++ b/pkgs/development/libraries/haskell/monoid-transformer/default.nix
@@ -0,0 +1,12 @@
+{ cabal }:
+
+cabal.mkDerivation (self: {
+  pname = "monoid-transformer";
+  version = "0.0.2";
+  sha256 = "0hd8jb1iw6lbgml3f08n680bdij56cjanpkr4fc1jr7qn6yzzb2j";
+  meta = {
+    description = "Monoid counterparts to some ubiquitous monad transformers";
+    license = self.stdenv.lib.licenses.bsd3;
+    platforms = self.ghc.meta.platforms;
+  };
+})
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 0c54836ab6e0..4f42f9912554 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -981,6 +981,8 @@ let result = let callPackage = x : y : modifyPrio (newScope result.finalReturn x
 
   esqueleto = callPackage ../development/libraries/haskell/esqueleto {};
 
+  eventList = callPackage ../development/libraries/haskell/event-list {};
+
   exPool = callPackage ../development/libraries/haskell/ex-pool { hashable = self.hashable_1_2_1_0; };
 
   exceptionMtl = callPackage ../development/libraries/haskell/exception-mtl {};
@@ -1205,6 +1207,8 @@ let result = let callPackage = x : y : modifyPrio (newScope result.finalReturn x
 
   haskellSrcMeta = callPackage ../development/libraries/haskell/haskell-src-meta {};
 
+  haskore = callPackage ../development/libraries/haskell/haskore {};
+
   hastache = callPackage ../development/libraries/haskell/hastache {};
 
   hexpat = callPackage ../development/libraries/haskell/hexpat {};
@@ -1498,6 +1502,8 @@ let result = let callPackage = x : y : modifyPrio (newScope result.finalReturn x
 
   mainlandPretty = callPackage ../development/libraries/haskell/mainland-pretty {};
 
+  markovChain = callPackage ../development/libraries/haskell/markov-chain {};
+
   maude = callPackage ../development/libraries/haskell/maude {};
 
   MaybeT = callPackage ../development/libraries/haskell/MaybeT {};
@@ -1506,6 +1512,8 @@ let result = let callPackage = x : y : modifyPrio (newScope result.finalReturn x
 
   mersenneRandomPure64 = callPackage ../development/libraries/haskell/mersenne-random-pure64 {};
 
+  midi = callPackage ../development/libraries/haskell/midi {};
+
   minimorph = callPackage ../development/libraries/haskell/minimorph {};
 
   miniutter = callPackage ../development/libraries/haskell/miniutter {};
@@ -1552,6 +1560,8 @@ let result = let callPackage = x : y : modifyPrio (newScope result.finalReturn x
 
   monoidExtras = callPackage ../development/libraries/haskell/monoid-extras {};
 
+  monoidTransformer = callPackage ../development/libraries/haskell/monoid-transformer {};
+
   mongoDB = callPackage ../development/libraries/haskell/mongoDB {};
 
   monoTraversable = callPackage ../development/libraries/haskell/mono-traversable {};