diff --git a/DrumKit/DrumKit.csproj b/DrumKit/DrumKit.csproj
index f7df985..7f91282 100644
--- a/DrumKit/DrumKit.csproj
+++ b/DrumKit/DrumKit.csproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
@@ -16,6 +16,9 @@
     <AppxAutoIncrementPackageRevision>True</AppxAutoIncrementPackageRevision>
     <PackageCertificateThumbprint>4FCCD6DD6F5D1EEA43AC26BB8D451F1B54209922</PackageCertificateThumbprint>
     <AppxSymbolPackageEnabled>True</AppxSymbolPackageEnabled>
+    <TargetPlatformVersion>8.1</TargetPlatformVersion>
+    <MinimumVisualStudioVersion>12</MinimumVisualStudioVersion>
+    <TargetFrameworkVersion />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <PlatformTarget>AnyCPU</PlatformTarget>
@@ -299,8 +302,8 @@
       <HintPath>..\packages\SharpDX.XAudio2.2.5.0\lib\win8\SharpDX.XAudio2.dll</HintPath>
     </Reference>
   </ItemGroup>
-  <PropertyGroup Condition=" '$(VisualStudioVersion)' == '' or '$(VisualStudioVersion)' &lt; '11.0' ">
-    <VisualStudioVersion>11.0</VisualStudioVersion>
+  <PropertyGroup Condition=" '$(VisualStudioVersion)' == '' or '$(VisualStudioVersion)' &lt; '12.0' ">
+    <VisualStudioVersion>12.0</VisualStudioVersion>
   </PropertyGroup>
   <Import Project="$(MSBuildExtensionsPath)\Microsoft\WindowsXaml\v$(VisualStudioVersion)\Microsoft.Windows.UI.Xaml.CSharp.targets" />
   <PropertyGroup>
diff --git a/DrumKit/Features.txt b/DrumKit/Features.txt
index dedae4a..b8f74fc 100644
--- a/DrumKit/Features.txt
+++ b/DrumKit/Features.txt
@@ -1,10 +1,11 @@
-Feature ideas:
-
-* drum hit intensity
-* audio effects (echo & stuff)
-* additional drum sets
-* create/delete drums
-* create drum kits
-* z index in editor
-* recording
-* sequencer
\ No newline at end of file
+Features:
+* drum hit intensity
+* audio effects (echo & stuff)
+* additional drum sets
+* create/delete drums
+* create drum kits
+* z index in editor
+* recording
+* sequencer
+(UI) help
+(UI) improve layouts (retarget to 8.1)
\ No newline at end of file
diff --git a/DrumKit/Package.appxmanifest b/DrumKit/Package.appxmanifest
index b1a4a76..e8c55b2 100644
--- a/DrumKit/Package.appxmanifest
+++ b/DrumKit/Package.appxmanifest
@@ -1,30 +1,35 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Package xmlns="http://schemas.microsoft.com/appx/2010/manifest">
-  <Identity Name="35555TiberiuChibici.DrumKit" Publisher="CN=B6F45FE5-D749-4D29-874C-8323B266F3C8" Version="2.2.0.27" />
-  <Properties>
-    <DisplayName>DrumKit</DisplayName>
-    <PublisherDisplayName>Tiberiu Chibici</PublisherDisplayName>
-    <Logo>Assets\Logos\StoreLogo.png</Logo>
-  </Properties>
-  <Prerequisites>
-    <OSMinVersion>6.2.1</OSMinVersion>
-    <OSMaxVersionTested>6.2.1</OSMaxVersionTested>
-  </Prerequisites>
-  <Resources>
-    <Resource Language="x-generate" />
-  </Resources>
-  <Applications>
-    <Application Id="App" Executable="$targetnametoken$.exe" EntryPoint="DrumKit.App">
-      <VisualElements DisplayName="DrumKit" Logo="Assets\Logos\Logo.png" SmallLogo="Assets\Logos\SmallLogo.png" Description="DrumKit" ForegroundText="light" BackgroundColor="#164646" ToastCapable="false">
-        <DefaultTile ShowName="allLogos" WideLogo="Assets\Logos\WideLogo.png" />
-        <SplashScreen Image="Assets\Logos\SplashScreen.png" />
-        <InitialRotationPreference>
-          <Rotation Preference="portrait" />
-          <Rotation Preference="landscape" />
-          <Rotation Preference="portraitFlipped" />
-          <Rotation Preference="landscapeFlipped" />
-        </InitialRotationPreference>
-      </VisualElements>
-    </Application>
-  </Applications>
+<?xml version="1.0" encoding="utf-8"?>
+<Package xmlns="http://schemas.microsoft.com/appx/2010/manifest" xmlns:m2="http://schemas.microsoft.com/appx/2013/manifest">
+  <Identity Name="35555TiberiuChibici.DrumKit" Publisher="CN=B6F45FE5-D749-4D29-874C-8323B266F3C8" Version="2.3.0.27" />
+  <Properties>
+    <DisplayName>DrumKit</DisplayName>
+    <PublisherDisplayName>Tiberiu Chibici</PublisherDisplayName>
+    <Logo>Assets\Logos\StoreLogo.png</Logo>
+  </Properties>
+  <Prerequisites>
+    <OSMinVersion>6.3.0</OSMinVersion>
+    <OSMaxVersionTested>6.3.0</OSMaxVersionTested>
+  </Prerequisites>
+  <Resources>
+    <Resource Language="x-generate" />
+  </Resources>
+  <Applications>
+    <Application Id="App" Executable="$targetnametoken$.exe" EntryPoint="DrumKit.App">
+      <m2:VisualElements DisplayName="DrumKit" Description="DrumKit" BackgroundColor="#164646" ForegroundText="light" ToastCapable="false" Square150x150Logo="Assets\Logos\Logo.png" Square30x30Logo="Assets\Logos\SmallLogo.png">
+        <m2:DefaultTile Wide310x150Logo="Assets\Logos\WideLogo.png">
+          <m2:ShowNameOnTiles>
+            <m2:ShowOn Tile="square150x150Logo" />
+            <m2:ShowOn Tile="wide310x150Logo" />
+          </m2:ShowNameOnTiles>
+        </m2:DefaultTile>
+        <m2:InitialRotationPreference>
+          <m2:Rotation Preference="portrait" />
+          <m2:Rotation Preference="landscape" />
+          <m2:Rotation Preference="portraitFlipped" />
+          <m2:Rotation Preference="landscapeFlipped" />
+        </m2:InitialRotationPreference>
+        <m2:SplashScreen Image="Assets\Logos\SplashScreen.png" />
+      </m2:VisualElements>
+    </Application>
+  </Applications>
 </Package>
\ No newline at end of file
diff --git a/Tarball/Tarball.csproj b/Tarball/Tarball.csproj
index db24971..58fafc6 100644
--- a/Tarball/Tarball.csproj
+++ b/Tarball/Tarball.csproj
@@ -1,122 +1,125 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
-  <PropertyGroup>
-    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
-    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
-    <ProductVersion>8.0.30703</ProductVersion>
-    <SchemaVersion>2.0</SchemaVersion>
-    <ProjectGuid>{5CB567D7-572E-4BAE-802F-7E3F62CDDF64}</ProjectGuid>
-    <OutputType>Library</OutputType>
-    <AppDesignerFolder>Properties</AppDesignerFolder>
-    <RootNamespace>Tarball</RootNamespace>
-    <AssemblyName>Tarball</AssemblyName>
-    <DefaultLanguage>en-US</DefaultLanguage>
-    <FileAlignment>512</FileAlignment>
-    <ProjectTypeGuids>{BC8A1FFA-BEE3-4634-8014-F334798102B3};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
-    <DebugSymbols>true</DebugSymbols>
-    <DebugType>full</DebugType>
-    <Optimize>false</Optimize>
-    <OutputPath>bin\Debug\</OutputPath>
-    <DefineConstants>DEBUG;TRACE;NETFX_CORE</DefineConstants>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
-    <DebugType>pdbonly</DebugType>
-    <Optimize>true</Optimize>
-    <OutputPath>bin\Release\</OutputPath>
-    <DefineConstants>TRACE;NETFX_CORE</DefineConstants>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|ARM'">
-    <DebugSymbols>true</DebugSymbols>
-    <OutputPath>bin\ARM\Debug\</OutputPath>
-    <DefineConstants>DEBUG;TRACE;NETFX_CORE</DefineConstants>
-    <NoWarn>;2008</NoWarn>
-    <DebugType>full</DebugType>
-    <PlatformTarget>ARM</PlatformTarget>
-    <UseVSHostingProcess>false</UseVSHostingProcess>
-    <ErrorReport>prompt</ErrorReport>
-    <Prefer32Bit>true</Prefer32Bit>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|ARM'">
-    <OutputPath>bin\ARM\Release\</OutputPath>
-    <DefineConstants>TRACE;NETFX_CORE</DefineConstants>
-    <Optimize>true</Optimize>
-    <NoWarn>;2008</NoWarn>
-    <DebugType>pdbonly</DebugType>
-    <PlatformTarget>ARM</PlatformTarget>
-    <UseVSHostingProcess>false</UseVSHostingProcess>
-    <ErrorReport>prompt</ErrorReport>
-    <Prefer32Bit>true</Prefer32Bit>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'">
-    <DebugSymbols>true</DebugSymbols>
-    <OutputPath>bin\x64\Debug\</OutputPath>
-    <DefineConstants>DEBUG;TRACE;NETFX_CORE</DefineConstants>
-    <NoWarn>;2008</NoWarn>
-    <DebugType>full</DebugType>
-    <PlatformTarget>x64</PlatformTarget>
-    <UseVSHostingProcess>false</UseVSHostingProcess>
-    <ErrorReport>prompt</ErrorReport>
-    <Prefer32Bit>true</Prefer32Bit>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x64'">
-    <OutputPath>bin\x64\Release\</OutputPath>
-    <DefineConstants>TRACE;NETFX_CORE</DefineConstants>
-    <Optimize>true</Optimize>
-    <NoWarn>;2008</NoWarn>
-    <DebugType>pdbonly</DebugType>
-    <PlatformTarget>x64</PlatformTarget>
-    <UseVSHostingProcess>false</UseVSHostingProcess>
-    <ErrorReport>prompt</ErrorReport>
-    <Prefer32Bit>true</Prefer32Bit>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x86'">
-    <DebugSymbols>true</DebugSymbols>
-    <OutputPath>bin\x86\Debug\</OutputPath>
-    <DefineConstants>DEBUG;TRACE;NETFX_CORE</DefineConstants>
-    <NoWarn>;2008</NoWarn>
-    <DebugType>full</DebugType>
-    <PlatformTarget>x86</PlatformTarget>
-    <UseVSHostingProcess>false</UseVSHostingProcess>
-    <ErrorReport>prompt</ErrorReport>
-    <Prefer32Bit>true</Prefer32Bit>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x86'">
-    <OutputPath>bin\x86\Release\</OutputPath>
-    <DefineConstants>TRACE;NETFX_CORE</DefineConstants>
-    <Optimize>true</Optimize>
-    <NoWarn>;2008</NoWarn>
-    <DebugType>pdbonly</DebugType>
-    <PlatformTarget>x86</PlatformTarget>
-    <UseVSHostingProcess>false</UseVSHostingProcess>
-    <ErrorReport>prompt</ErrorReport>
-    <Prefer32Bit>true</Prefer32Bit>
-  </PropertyGroup>
-  <ItemGroup>
-    <!-- A reference to the entire .Net Framework and Windows SDK are automatically included -->
-  </ItemGroup>
-  <ItemGroup>
-    <Compile Include="IOHelper.cs" />
-    <Compile Include="TarballHeader.cs" />
-    <Compile Include="TarballReader.cs" />
-    <Compile Include="Properties\AssemblyInfo.cs" />
-    <Compile Include="TarballWriter.cs" />
-  </ItemGroup>
-  <PropertyGroup Condition=" '$(VisualStudioVersion)' == '' or '$(VisualStudioVersion)' &lt; '11.0' ">
-    <VisualStudioVersion>11.0</VisualStudioVersion>
-  </PropertyGroup>
-  <Import Project="$(MSBuildExtensionsPath)\Microsoft\WindowsXaml\v$(VisualStudioVersion)\Microsoft.Windows.UI.Xaml.CSharp.targets" />
-  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
-       Other similar extension points exist, see Microsoft.Common.targets.
-  <Target Name="BeforeBuild">
-  </Target>
-  <Target Name="AfterBuild">
-  </Target>
-  -->
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProductVersion>8.0.30703</ProductVersion>
+    <SchemaVersion>2.0</SchemaVersion>
+    <ProjectGuid>{5CB567D7-572E-4BAE-802F-7E3F62CDDF64}</ProjectGuid>
+    <OutputType>Library</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>Tarball</RootNamespace>
+    <AssemblyName>Tarball</AssemblyName>
+    <DefaultLanguage>en-US</DefaultLanguage>
+    <FileAlignment>512</FileAlignment>
+    <ProjectTypeGuids>{BC8A1FFA-BEE3-4634-8014-F334798102B3};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
+    <TargetPlatformVersion>8.1</TargetPlatformVersion>
+    <MinimumVisualStudioVersion>12</MinimumVisualStudioVersion>
+    <TargetFrameworkVersion />
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE;NETFX_CORE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE;NETFX_CORE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|ARM'">
+    <DebugSymbols>true</DebugSymbols>
+    <OutputPath>bin\ARM\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE;NETFX_CORE</DefineConstants>
+    <NoWarn>;2008</NoWarn>
+    <DebugType>full</DebugType>
+    <PlatformTarget>ARM</PlatformTarget>
+    <UseVSHostingProcess>false</UseVSHostingProcess>
+    <ErrorReport>prompt</ErrorReport>
+    <Prefer32Bit>true</Prefer32Bit>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|ARM'">
+    <OutputPath>bin\ARM\Release\</OutputPath>
+    <DefineConstants>TRACE;NETFX_CORE</DefineConstants>
+    <Optimize>true</Optimize>
+    <NoWarn>;2008</NoWarn>
+    <DebugType>pdbonly</DebugType>
+    <PlatformTarget>ARM</PlatformTarget>
+    <UseVSHostingProcess>false</UseVSHostingProcess>
+    <ErrorReport>prompt</ErrorReport>
+    <Prefer32Bit>true</Prefer32Bit>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'">
+    <DebugSymbols>true</DebugSymbols>
+    <OutputPath>bin\x64\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE;NETFX_CORE</DefineConstants>
+    <NoWarn>;2008</NoWarn>
+    <DebugType>full</DebugType>
+    <PlatformTarget>x64</PlatformTarget>
+    <UseVSHostingProcess>false</UseVSHostingProcess>
+    <ErrorReport>prompt</ErrorReport>
+    <Prefer32Bit>true</Prefer32Bit>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x64'">
+    <OutputPath>bin\x64\Release\</OutputPath>
+    <DefineConstants>TRACE;NETFX_CORE</DefineConstants>
+    <Optimize>true</Optimize>
+    <NoWarn>;2008</NoWarn>
+    <DebugType>pdbonly</DebugType>
+    <PlatformTarget>x64</PlatformTarget>
+    <UseVSHostingProcess>false</UseVSHostingProcess>
+    <ErrorReport>prompt</ErrorReport>
+    <Prefer32Bit>true</Prefer32Bit>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x86'">
+    <DebugSymbols>true</DebugSymbols>
+    <OutputPath>bin\x86\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE;NETFX_CORE</DefineConstants>
+    <NoWarn>;2008</NoWarn>
+    <DebugType>full</DebugType>
+    <PlatformTarget>x86</PlatformTarget>
+    <UseVSHostingProcess>false</UseVSHostingProcess>
+    <ErrorReport>prompt</ErrorReport>
+    <Prefer32Bit>true</Prefer32Bit>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x86'">
+    <OutputPath>bin\x86\Release\</OutputPath>
+    <DefineConstants>TRACE;NETFX_CORE</DefineConstants>
+    <Optimize>true</Optimize>
+    <NoWarn>;2008</NoWarn>
+    <DebugType>pdbonly</DebugType>
+    <PlatformTarget>x86</PlatformTarget>
+    <UseVSHostingProcess>false</UseVSHostingProcess>
+    <ErrorReport>prompt</ErrorReport>
+    <Prefer32Bit>true</Prefer32Bit>
+  </PropertyGroup>
+  <ItemGroup>
+    <!-- A reference to the entire .Net Framework and Windows SDK are automatically included -->
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="IOHelper.cs" />
+    <Compile Include="TarballHeader.cs" />
+    <Compile Include="TarballReader.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="TarballWriter.cs" />
+  </ItemGroup>
+  <PropertyGroup Condition=" '$(VisualStudioVersion)' == '' or '$(VisualStudioVersion)' &lt; '12.0' ">
+    <VisualStudioVersion>12.0</VisualStudioVersion>
+  </PropertyGroup>
+  <Import Project="$(MSBuildExtensionsPath)\Microsoft\WindowsXaml\v$(VisualStudioVersion)\Microsoft.Windows.UI.Xaml.CSharp.targets" />
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+       Other similar extension points exist, see Microsoft.Common.targets.
+  <Target Name="BeforeBuild">
+  </Target>
+  <Target Name="AfterBuild">
+  </Target>
+  -->
 </Project>
\ No newline at end of file