Hi Toby, as the release of jessie is getting closer, I've just uploaded an NMU of musescore to Debian. It fixes an RC bug about a non-free license. I've attached the patch for the NMU to this e-mail, you might want to incorporate it into the next packaging.
Regards, Tobias
diff --git a/debian/changelog b/debian/changelog
index a50d2db..02420a9 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,16 @@
+musescore (1.3+dfsg1-0.1) unstable; urgency=low
+
+ * Non-maintainer upload.
+ * Remove file mscore/demos/prelude.mscx from upstream tarball.
+ The file has the license CC-BY-NC-SA 2.0, which is nonfree.
+ Thanks to mejiko <kame55-itasenpara...@y2.dion.ne.jp> (Closes: #749696)
+ * Increment dfsg suffix by one for new upstream tarball and use
+ xz compression
+ * Imported Upstream version 1.3+dfsg1
+ * Add new patch to remove nonfree file from installation
+
+ -- Tobias Quathamer <to...@debian.org> Thu, 23 Oct 2014 13:05:04 +0200
+
musescore (1.3+dfsg-2) unstable; urgency=medium
* Remove obsolete mscore.sh script
diff --git a/debian/patches/26-remove-nonfree-prelude.mscx-from-installation.patch b/debian/patches/26-remove-nonfree-prelude.mscx-from-installation.patch
new file mode 100644
index 0000000..b3ecbbd
--- /dev/null
+++ b/debian/patches/26-remove-nonfree-prelude.mscx-from-installation.patch
@@ -0,0 +1,21 @@
+From: Tobias Quathamer <to...@debian.org>
+Date: Thu, 23 Oct 2014 12:58:00 +0200
+Subject: Remove nonfree prelude.mscx from installation
+
+---
+ mscore/demos/CMakeLists.txt | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/mscore/demos/CMakeLists.txt b/mscore/demos/CMakeLists.txt
+index 24ee71e..64f6762 100644
+--- a/mscore/demos/CMakeLists.txt
++++ b/mscore/demos/CMakeLists.txt
+@@ -28,7 +28,7 @@ install(FILES
+ inv10.mscx
+ inv13.mscx
+ praeludium1.mscx
+- prelude.mscx
++ prelude-sr.mscx
+ promenade.mscx
+ scales.mscx
+ sonata16.mscx
diff --git a/debian/patches/series b/debian/patches/series
index 34887ce..ae499c0 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -19,4 +19,5 @@
23-fix-bindings.patch
25-desktop-file-genericnames.patch
25-build-hurd.patch
+26-remove-nonfree-prelude.mscx-from-installation.patch
adjust-newer-freetype-header-location.patch
diff --git a/debian/rules b/debian/rules
index 7348bf9..ab48a4c 100755
--- a/debian/rules
+++ b/debian/rules
@@ -71,11 +71,12 @@ get-orig-source:
tar -C tmp-musescore-$(version) -xjf mscore-$(version).tar.bz2
cd tmp-musescore-$(version)/mscore* && \
find -name *pdf -exec rm {} + && \
- rm mscore/rtf2html/rtf2html
+ rm mscore/rtf2html/rtf2html && \
+ rm mscore/demos/prelude.mscx
mv tmp-musescore-$(version)/mscore* \
- tmp-musescore-$(version)/musescore-$(version)\+dfsg
- tar -C tmp-musescore-$(version) -czf musescore_$(version)\+dfsg.orig.tar.gz \
- musescore-$(version)\+dfsg/
+ tmp-musescore-$(version)/musescore-$(version)\+dfsg1
+ tar -C tmp-musescore-$(version) -caf musescore_$(version)\+dfsg1.orig.tar.xz \
+ musescore-$(version)\+dfsg1/
#mv musescore_$(version)\+dfsg.orig.tar.gz ../
rm -r tmp-musescore-$(version)
-rm mscore*bz2 musescore*bz2
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