diff --git a/Source/PS_Source/StretchSource.cpp b/Source/PS_Source/StretchSource.cpp
index bf025ce..73a2280 100644
--- a/Source/PS_Source/StretchSource.cpp
+++ b/Source/PS_Source/StretchSource.cpp
@@ -128,35 +128,6 @@ void StretchAudioSource::setFreeFilterEnvelope(shared_envelope env)
 	}
 }
 
-ValueTree StretchAudioSource::getStateTree()
-{
-	ValueTree tree("stretchsourcestate");
-	storeToTreeProperties(tree, nullptr, "pitch_shift", m_ppar.pitch_shift.cents, 
-		"octaves_minus2", m_ppar.octave.om2,
-		"octaves_minus1",m_ppar.octave.om1,
-		"octave0",m_ppar.octave.o0,
-		"octave_plus1",m_ppar.octave.o1,
-		"octaves_plus15",m_ppar.octave.o15,
-		"octaves_plus2",m_ppar.octave.o2);
-	return tree;
-}
-
-void StretchAudioSource::setStateTree(ValueTree state)
-{
-	ScopedLock locker(m_cs);
-	getFromTreeProperties(state, "pitch_shift", m_ppar.pitch_shift.cents,
-		"octaves_minus2", m_ppar.octave.om2,
-		"octaves_minus1", m_ppar.octave.om1,
-		"octave0", m_ppar.octave.o0,
-		"octave_plus1", m_ppar.octave.o1,
-		"octaves_plus15", m_ppar.octave.o15,
-		"octaves_plus2", m_ppar.octave.o2);
-	for (int i = 0; i < m_stretchers.size(); ++i)
-	{
-		m_stretchers[i]->set_parameters(&m_ppar);
-	}
-}
-
 bool StretchAudioSource::isLoopingEnabled()
 {
 	if (m_inputfile == nullptr || m_inputfile->info.nsamples == 0)
diff --git a/Source/PS_Source/StretchSource.h b/Source/PS_Source/StretchSource.h
index 865dde4..ae01e16 100644
--- a/Source/PS_Source/StretchSource.h
+++ b/Source/PS_Source/StretchSource.h
@@ -89,8 +89,6 @@ public:
 	
 	void setFreeFilterEnvelope(shared_envelope env);
 
-	ValueTree getStateTree();
-	void setStateTree(ValueTree state);
 	void setClippingEnabled(bool b) { m_clip_output = b; }
 	bool isLoopingEnabled();
 	void setLoopingEnabled(bool b);
diff --git a/Source/PS_Source/globals.h b/Source/PS_Source/globals.h
index 2a2291a..e36fb7c 100644
--- a/Source/PS_Source/globals.h
+++ b/Source/PS_Source/globals.h
@@ -85,16 +85,12 @@ inline bool hasProperties(ValueTree src, Args&&... args)
 	return (src.hasProperty(args) && ...);
 }
 
-inline void storeToTreeProperties(ValueTree dest, UndoManager* uman, juce::Identifier varname, var val)
-{
-	dest.setProperty(varname, val, uman);
-}
-
 template<typename... Ts>
 inline void storeToTreeProperties(ValueTree dest, UndoManager* uman, juce::Identifier varname, var val, Ts&&... args)
 {
 	dest.setProperty(varname, val, uman);
-	storeToTreeProperties(dest, uman, args...);
+	if constexpr(sizeof...(Ts)>1)
+		storeToTreeProperties(dest, uman, args...);
 }
 
 template<typename T>
@@ -135,19 +131,13 @@ inline void storeToTreeProperties(ValueTree dest, UndoManager* uman, const Owned
 	}
 }
 
-template<typename T>
-inline void getFromTreeProperties(ValueTree src, juce::Identifier varname, T& val)
-{
-	if (src.hasProperty(varname))
-		val = src.getProperty(varname);
-}
-
 template<typename... Ts, typename T>
 inline void getFromTreeProperties(ValueTree src, juce::Identifier varname, T& val, Ts&... args)
 {
 	if (src.hasProperty(varname))
 		val = src.getProperty(varname);
-	getFromTreeProperties(src, args...);
+	if constexpr(sizeof...(Ts)>1)
+		getFromTreeProperties(src, args...);
 }
 
 template<typename T>