diff --git a/include/Editor.h b/include/Editor.h
index 04765ee07..d755608a6 100644
--- a/include/Editor.h
+++ b/include/Editor.h
@@ -28,6 +28,12 @@
 #include <QMainWindow>
 #include <QToolBar>
 
+static const int Quantizations[] = {
+	1, 2, 4, 8, 16, 32, 64,
+	3, 6, 12, 24, 48, 96, 192
+};
+
+
 class QAction;
 
 class DropToolBar;
diff --git a/src/gui/editors/AutomationEditor.cpp b/src/gui/editors/AutomationEditor.cpp
index 265977ad5..8c281bf3e 100644
--- a/src/gui/editors/AutomationEditor.cpp
+++ b/src/gui/editors/AutomationEditor.cpp
@@ -124,16 +124,9 @@ AutomationEditor::AutomationEditor() :
 	connect( m_tensionModel, SIGNAL( dataChanged() ),
 				this, SLOT( setTension() ) );
 
-	for( int i = 0; i < 7; ++i )
-	{
-		m_quantizeModel.addItem( "1/" + QString::number( 1 << i ) );
+	for (auto q : Quantizations) {
+		m_quantizeModel.addItem(QString("1/%1").arg(q));
 	}
-	for( int i = 0; i < 5; ++i )
-	{
-		m_quantizeModel.addItem( "1/" +
-					QString::number( ( 1 << i ) * 3 ) );
-	}
-	m_quantizeModel.addItem( "1/192" );
 
 	connect( &m_quantizeModel, SIGNAL(dataChanged() ),
 					this, SLOT( setQuantization() ) );
@@ -2160,22 +2153,7 @@ void AutomationEditor::zoomingYChanged()
 
 void AutomationEditor::setQuantization()
 {
-	int quantization = m_quantizeModel.value();
-	if( quantization < 7 )
-	{
-		quantization = 1 << quantization;
-	}
-	else if( quantization < 12 )
-	{
-		quantization = 1 << ( quantization - 7 );
-		quantization *= 3;
-	}
-	else
-	{
-		quantization = DefaultTicksPerBar;
-	}
-	quantization = DefaultTicksPerBar / quantization;
-	AutomationPattern::setQuantization( quantization );
+	AutomationPattern::setQuantization(DefaultTicksPerBar / Quantizations[m_quantizeModel.value()]);
 
 	update();
 }
diff --git a/src/gui/editors/PianoRoll.cpp b/src/gui/editors/PianoRoll.cpp
index 2f948523a..b519fb9e5 100644
--- a/src/gui/editors/PianoRoll.cpp
+++ b/src/gui/editors/PianoRoll.cpp
@@ -371,15 +371,9 @@ PianoRoll::PianoRoll() :
 
 	// Set up quantization model
 	m_quantizeModel.addItem( tr( "Note lock" ) );
-	for( int i = 0; i <= NUM_EVEN_LENGTHS; ++i )
-	{
-		m_quantizeModel.addItem( "1/" + QString::number( 1 << i ) );
+	for (auto q : Quantizations) {
+		m_quantizeModel.addItem(QString("1/%1").arg(q));
 	}
-	for( int i = 0; i < NUM_TRIPLET_LENGTHS; ++i )
-	{
-		m_quantizeModel.addItem( "1/" + QString::number( (1 << i) * 3 ) );
-	}
-	m_quantizeModel.addItem( "1/192" );
 	m_quantizeModel.setValue( m_quantizeModel.findText( "1/16" ) );
 
 	connect( &m_quantizeModel, SIGNAL( dataChanged() ),
@@ -4280,8 +4274,7 @@ int PianoRoll::quantization() const
 		}
 	}
 
-	QString text = m_quantizeModel.currentText();
-	return DefaultTicksPerBar / text.right( text.length() - 2 ).toInt();
+	return DefaultTicksPerBar / Quantizations[m_quantizeModel.value() - 1];
 }