diff --git a/qml/ScaleToise.qml b/qml/ScaleToise.qml
index b68d252..7ef1ffb 100644
--- a/qml/ScaleToise.qml
+++ b/qml/ScaleToise.qml
@@ -46,7 +46,7 @@ Toise {
 	// Toise parameters
 	index: note + notes_en.length * octave
 	marks: notes[notes_style]
-	nb_marks_displayed: Math.min(nb_marks, width / theme.fontSizeLarge * 0.8)
+	nb_marks_displayed: width > 100 ? Math.min(nb_marks, width / theme.fontSizeLarge * 0.8) : 1
 
 	mark_color: function(note) {
 		if (isAltered(note)) return colorAltered;
diff --git a/qml/Scene.qml b/qml/Scene.qml
index 8225bd2..60b4e63 100644
--- a/qml/Scene.qml
+++ b/qml/Scene.qml
@@ -24,7 +24,7 @@ import QtQuick 2.0
 
 Item {
 	width: 600
-	height: 450
+	height: 200
 
 	DesktopTheme {
 		id: theme
diff --git a/qml/Toise.qml b/qml/Toise.qml
index 3f5fc83..cd4445c 100644
--- a/qml/Toise.qml
+++ b/qml/Toise.qml
@@ -40,6 +40,7 @@ Item {
 	property int nb_marks: marks.length
 
 	property int nb_marks_displayed: nb_marks
+	property bool is_pair: nb_marks_displayed % 2 == 0
 
 	/// current mark is on the middle
 	property double position: index - (nb_marks_displayed - 1) / 2
@@ -58,7 +59,7 @@ Item {
 		id: toise
 		anchors.top: parent.top
 		anchors.left: parent.left
-		anchors.leftMargin: - cellWidth * delta
+		anchors.leftMargin: is_pair ? - cellWidth * delta : 0
 		anchors.bottom: parent.bottom
 		anchors.right: parent.right
 		anchors.topMargin: h_margin
@@ -67,7 +68,7 @@ Item {
 		property double cellWidth: parent.width / nb_marks_displayed
 
 		Repeater {
-			model: nb_marks_displayed + 1
+			model: is_pair ? nb_marks_displayed + 1 : nb_marks_displayed
 			Rectangle {
 				width: toise.cellWidth
 				height: toise.height
diff --git a/qml/TunerScreen.qml b/qml/TunerScreen.qml
index 8b3b927..acf2e10 100644
--- a/qml/TunerScreen.qml
+++ b/qml/TunerScreen.qml
@@ -84,8 +84,8 @@ Item {
 		id: note_info
 
 		anchors.top: meter.bottom
-		anchors.left: parent.left
-		anchors.right: parent.right
+		anchors.left: meter.left
+		anchors.right: meter.right
 		anchors.bottom: parent.bottom
 
 		property int toise_h: Math.max(width / 10, theme.fontSizeLarge * 1.8)
@@ -110,9 +110,11 @@ Item {
 
 			anchors.top: main.is_portrait ? title_note.bottom : parent.top
 			anchors.topMargin: parent.margin_h
-			anchors.horizontalCenter: parent.horizontalCenter
 
-			width: meter.width
+			anchors.left: parent.left
+			anchors.leftMargin: is_portrait ? 0 : parent.width / 20
+
+			width: is_portrait ? meter.width : meter.width * 2 / 3
 			height: parent.toise_h
 
 			note: tuner.note
@@ -134,18 +136,17 @@ Item {
 
 		// octave toise
 		Toise {
-			anchors.top: main.is_portrait ? title_octave.bottom : toise.bottom
+			anchors.top: main.is_portrait ? title_octave.bottom : parent.top
 			anchors.topMargin: parent.margin_h
-			anchors.horizontalCenter: parent.horizontalCenter
-
-			visible: main.is_portrait
 
+			anchors.right: parent.right
+			anchors.rightMargin: is_portrait ? (parent.width - width) / 2 : parent.width / 20
 			theme: main.theme
 
-			marks: [1, 2, 3, 4, 5, 6, 7, 8, 9]
-			nb_marks_displayed: 4
+			marks: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
+			nb_marks_displayed: is_portrait ? 4 : 3
 
-			width: meter.width / 2
+			width: is_portrait ? meter.width / 2 : parent.width / 6
 			height: parent.toise_h
 
 			index: tuner.octave