diff --git a/hydrogen/ChangeLog b/hydrogen/ChangeLog
new file mode 100644
index 000000000..110a999f0
--- /dev/null
+++ b/hydrogen/ChangeLog
@@ -0,0 +1,5 @@
+2010-10-06 Adrián Chaves Fernández (Gallaecio) <adriyetichaves@gmail.com>
+
+  * 0.9.4.2-1 :
+  Imported from Arch Linux's 'hydrogen' build package:
+  http://repos.archlinux.org/wsvn/packages/hydrogen/trunk/PKGBUILD?rev=91083&peg=91083
diff --git a/hydrogen/PKGBUILD b/hydrogen/PKGBUILD
new file mode 100644
index 000000000..21ac498f0
--- /dev/null
+++ b/hydrogen/PKGBUILD
@@ -0,0 +1,40 @@
+#
+# Apps Packages for Chakra, part of chakra-project.org
+#
+# Maintainer: Adrián Chaves Fernández (Gallaecio) <adriyetichaves@gmail.com>
+
+pkgname=hydrogen
+pkgver=0.9.5.1
+pkgrel=1
+pkgdesc="Advanced drum machine."
+arch=('i686' 'x86_64')
+license=('GPL2')
+url="http://www.hydrogen-music.org/"
+depends=('alsa-lib' 'flac' 'jack' 'libarchive' 'liblrdf' 'libsndfile' 'qt' 'tar' 'zlib')
+makedepends=('scons')
+categories=('multimedia')
+changelog=ChangeLog
+source=(http://downloads.sourceforge.net/$pkgname/$pkgname-$pkgver.tar.gz
+        lrdf_raptor2.patch
+        hydrogen-0.9.5-install.patch)
+md5sums=('52f3a528705818c65acf546a3be4c6fb'
+         '2124851e890f46158189b5fa90006d40'
+         'ce3a83a069b55e46aa532b55e803c9a5')
+
+build() {
+  cd $srcdir/$pkgname-$pkgver
+
+msg "Compiling..."
+  export QTDIR=/usr
+  patch -Np1 -i "${srcdir}/lrdf_raptor2.patch"
+  patch -Np0 -i "${srcdir}/hydrogen-0.9.5-install.patch"
+  scons \
+    prefix=/usr \
+    libarchive=1
+}
+
+package() {
+  cd $srcdir/$pkgname-$pkgver
+
+  scons DESTDIR="$pkgdir" install
+}
diff --git a/hydrogen/hydrogen-0.9.5-install.patch b/hydrogen/hydrogen-0.9.5-install.patch
new file mode 100644
index 000000000..2e6e707a1
--- /dev/null
+++ b/hydrogen/hydrogen-0.9.5-install.patch
@@ -0,0 +1,12 @@
+*** Sconstruct.org	2011-11-06 12:15:40.018119106 +0100
+--- Sconstruct	2011-11-06 12:16:21.124122432 +0100
+***************
+*** 298,304 ****
+  
+          for N in glob.glob('./data/i18n/hydrogen.*'):
+              env.Alias(target="install", source=env.Install(dir= env['DESTDIR'] + env['prefix'] + '/share/hydrogen/data/i18n', source=N))
+- 	env.Alias(target="install", source=env.Install(dir= env['DESTDIR'] + env['prefix'] + '/share/hydrogen/data', source="./data/img"))
+  
+  	#add every img in ./data/img to the install list. 
+  	os.path.walk("./data/img/",install_images,env) 
+--- 298,303 ----
diff --git a/hydrogen/install.patch b/hydrogen/install.patch
new file mode 100644
index 000000000..73b62369a
--- /dev/null
+++ b/hydrogen/install.patch
@@ -0,0 +1,12 @@
+*** Sconstruct.org	2011-11-06 12:15:40.018119106 +0100
+--- Sconstruct	2011-11-06 12:16:21.124122432 +0100
+***************
+*** 298,304 ****
+
+          for N in glob.glob('./data/i18n/hydrogen.*'):
+              env.Alias(target="install", source=env.Install(dir= env['DESTDIR'] + env['prefix'] + '/share/hydrogen/data/i18n', source=N))
+- 	env.Alias(target="install", source=env.Install(dir= env['DESTDIR'] + env['prefix'] + '/share/hydrogen/data', source="./data/img"))
+
+	#add every img in ./data/img to the install list.
+	os.path.walk("./data/img/",install_images,env)
+--- 298,303 ----
\ No newline at end of file
diff --git a/hydrogen/lrdf_raptor2.patch b/hydrogen/lrdf_raptor2.patch
new file mode 100644
index 000000000..ec176b716
--- /dev/null
+++ b/hydrogen/lrdf_raptor2.patch
@@ -0,0 +1,11 @@
+diff -baur hydrogen-0.9.5.old/Sconstruct hydrogen-0.9.5/Sconstruct
+--- hydrogen-0.9.5.old/Sconstruct	2011-08-11 18:00:07.889112348 +0800
++++ hydrogen-0.9.5/Sconstruct	2011-08-11 18:00:34.945632437 +0800
+@@ -83,6 +83,7 @@
+ 	includes.append( './' )
+ 	includes.append( 'gui/src/' )
+ 	includes.append( '3rdparty/install/include' )
++	includes.append( '/usr/include/raptor2' )
+ 
+ 	if sys.platform == "darwin":
+ 		ldflags.append( '-L/opt/local/lib' )