diff --git a/core/shared/core/bpmsection.h b/core/shared/core/bpmsection.h
index 195edd3..1342841 100644
--- a/core/shared/core/bpmsection.h
+++ b/core/shared/core/bpmsection.h
@@ -7,9 +7,12 @@ struct BPMSection
     int bpm = 0;
     int fraction = 1;
     microsec offset_start = 0;
+};
 
-    inline bool operator<(const BPMSection& right)
+struct BPMSectionCompt
+{
+    bool operator()(const BPMSection& lhs, const BPMSection& rhs) const noexcept
     {
-        return offset_start < right.offset_start;
+        return lhs.offset_start < rhs.offset_start;
     }
 };
diff --git a/core/shared/core/editor.h b/core/shared/core/editor.h
index 5a58c23..e669b64 100644
--- a/core/shared/core/editor.h
+++ b/core/shared/core/editor.h
@@ -10,15 +10,15 @@ public:
     virtual ~Editor() = default;
 
     virtual void input(PlayerInput&& inputdata) = 0;
-    virtual void update() = 0;
+    virtual void update(const sf::Time& dt) = 0;
     virtual void draw() const = 0;
 
-    inline void setBPMSections(const std::set<BPMSection>& sections)
+    inline void setBPMSections(const std::set<BPMSection, BPMSectionCompt>& sections) noexcept
     {
         _bpm_sections = sections;
     }
 
-    inline void setBPMSections(std::set<BPMSection>&& sections)
+    inline void setBPMSections(std::set<BPMSection, BPMSectionCompt>&& sections) noexcept
     {
         _bpm_sections = std::move(sections);
     }
@@ -33,7 +33,7 @@ public:
         _bpm_sections.insert(std::move(section));
     }
 
-    void removeBPMSectionAt(const microsec& offset)
+    /*void removeBPMSectionAt(const microsec& offset)
     {
         const auto section_it = std::find_if(_bpm_sections.rbegin(), _bpm_sections.rend(),
                                              [offset](const auto& section)
@@ -43,13 +43,13 @@ public:
 
         if (section_it != _bpm_sections.rend())
             _bpm_sections.erase((section_it + 1).base());
-    }
+    }*/
 
-    inline void clearBPMSections()
+    inline void clearBPMSections() noexcept
     {
         _bpm_sections.clear();
     }
 
 protected:
-    std::set<BPMSection> _bpm_sections;
+    std::set<BPMSection, BPMSectionCompt> _bpm_sections;
 };
diff --git a/core/shared/core/note.h b/core/shared/core/note.h
index 19bf997..6bf3e88 100644
--- a/core/shared/core/note.h
+++ b/core/shared/core/note.h
@@ -44,8 +44,8 @@ protected:
 
 struct NotePtrCompt
 {
-  bool operator()(const Note* lhs, const Note* rhs) const
-  {
-      return lhs->offset() < rhs->offset();
-  }
+    bool operator()(const Note* lhs, const Note* rhs) const noexcept
+    {
+        return lhs->offset() < rhs->offset();
+    }
 };
diff --git a/modes/classicmode/classicfactory.cpp b/modes/classicmode/classicfactory.cpp
index 6d60773..c97d557 100644
--- a/modes/classicmode/classicfactory.cpp
+++ b/modes/classicmode/classicfactory.cpp
@@ -7,5 +7,5 @@
 
 std::unique_ptr<Game> classic::init(sf::RenderWindow& game_window)
 {
-    return std::make_unique<ClassicGame>(std::make_unique<ClassicGraphicsManager>(game_window), std::make_unique<Music>());
+    return std::make_unique<ClassicGame>(std::make_unique<ClassicGraphicsManager>(game_window));
 }
diff --git a/modes/classicmode/editor/classiceditor.cpp.autosave b/modes/classicmode/editor/classiceditor.cpp.autosave
deleted file mode 100644
index 45665fd..0000000
--- a/modes/classicmode/editor/classiceditor.cpp.autosave
+++ /dev/null
@@ -1,6 +0,0 @@
-#include "classiceditor.h"
-
-ClassicEditor::ClassicEditor(std::shared_ptr<ClassicGraphicsManager>&& manager)
-{
-
-}
diff --git a/modes/classicmode/editor/classiceditor.h b/modes/classicmode/editor/classiceditor.h
index ce65d04..a9f7659 100644
--- a/modes/classicmode/editor/classiceditor.h
+++ b/modes/classicmode/editor/classiceditor.h
@@ -8,6 +8,6 @@ public:
     explicit ClassicEditor();
 
     virtual void input(PlayerInput&& inputdata) = 0;
-    virtual void update() = 0;
+    virtual void update(const sf::Time& dt) = 0;
     virtual void draw() const = 0;
 };
diff --git a/modes/classicmode/game/classicgame.cpp b/modes/classicmode/game/classicgame.cpp
index bf50681..469c5eb 100644
--- a/modes/classicmode/game/classicgame.cpp
+++ b/modes/classicmode/game/classicgame.cpp
@@ -2,14 +2,10 @@
 #include "classicnote.h"
 #include "classicmapcreator.h"
 #include "holdmanager.h"
-#include "context.h"
-#include "tools/music.h"
 
-ClassicGame::ClassicGame(std::shared_ptr<ClassicGraphicsManager>&& manager, std::unique_ptr<Music>&& music) :
+ClassicGame::ClassicGame(std::shared_ptr<ClassicGraphicsManager>&& manager) :
     _graphics_manager(std::move(manager)),
-    _hold_manager(std::make_shared<HoldManager>(_graphics_manager)),
-    _music(std::move(music)),
-    _is_paused(false)
+    _hold_manager(std::make_unique<HoldManager>(_graphics_manager))
 {
     _slap_buffer.loadFromFile("Tick.ogg");
     _slap.setBuffer(_slap_buffer);
@@ -59,19 +55,19 @@ ClassicGame::~ClassicGame()
 
 void ClassicGame::run()
 {
-    const auto context = std::make_shared<Context>(Context{_graphics_manager, _hold_manager});
+    _context.hold_manager = _hold_manager;
+    _context.graphics_manager = _graphics_manager;
 
-    ClassicMapCreator creator(context);
-    auto beatmap = creator.createBeatmap("aa");
-    _music->openFromFile("METEOR.flac");
-    _music->setVolume(10);
-    _music->play();
+    auto beatmap = classic::createBeatmap("aa", _context);
+    _music.openFromFile("METEOR.flac");
+    _music.setVolume(10);
+    _music.play();
     _timeline.setNotes(beatmap.notes, beatmap.visibility_offset);
 }
 
 void ClassicGame::input(PlayerInput&& inputdata)
 {
-    inputdata.timestamp = _music->fetchOffset();
+    inputdata.timestamp = _music.fetchOffset();
 
     switch (inputdata.event.type)
     {
@@ -83,16 +79,14 @@ void ClassicGame::input(PlayerInput&& inputdata)
     {
         if (inputdata.event.key.code == sf::Keyboard::Space)
         {
-            if (!_is_paused)
+            if (_music.isPaused())
             {
-                _is_paused = true;
-                _music->pause();
+                _music.play();
                 return;
             }
             else
             {
-                _is_paused = false;
-                _music->play();
+                _music.pause();
                 return;
             }
         }
@@ -119,7 +113,7 @@ void ClassicGame::input(PlayerInput&& inputdata)
 
 void ClassicGame::update()
 {
-    _timeline.update(_music->fetchOffset());
+    _timeline.update(_music.fetchOffset());
     _timeline.fetchVisibleNotes();
 }
 
diff --git a/modes/classicmode/game/classicgame.h b/modes/classicmode/game/classicgame.h
index 81297d2..114fd70 100644
--- a/modes/classicmode/game/classicgame.h
+++ b/modes/classicmode/game/classicgame.h
@@ -8,18 +8,19 @@
 
 #include "core/game.h"
 #include "core/timeline.h"
+#include "tools/music.h"
 
+#include "context.h"
 #include "classicnote.h"
 #include "classicactions.h"
 
-class Music;
 class ClassicGraphicsManager;
 class HoldManager;
 
 class ClassicGame final : public Game
 {
 public:
-    explicit ClassicGame(std::shared_ptr<ClassicGraphicsManager>&& manager, std::unique_ptr<Music>&& music);
+    explicit ClassicGame(std::shared_ptr<ClassicGraphicsManager>&& manager);
     virtual ~ClassicGame() override;
 
     virtual void run() override;
@@ -40,7 +41,6 @@ private:
     sf::SoundBuffer _slap_buffer;
     sf::Sound _slap;
 
-    std::unique_ptr<Music> _music;
-
-    bool _is_paused;
+    Music _music;
+    Context _context;
 };
diff --git a/modes/classicmode/game/classicmapcreator.cpp b/modes/classicmode/game/classicmapcreator.cpp
index a2027b2..0ed3653 100644
--- a/modes/classicmode/game/classicmapcreator.cpp
+++ b/modes/classicmode/game/classicmapcreator.cpp
@@ -6,11 +6,7 @@
 #include "classicdyinganimationscenario.h"
 //
 
-ClassicMapCreator::ClassicMapCreator(const std::shared_ptr<Context> &context) :
-    _context(context)
-{}
-
-Beatmap ClassicMapCreator::createBeatmap(const std::string& filepath) const
+auto classic::createBeatmap(const std::string& filepath, const Context &context) -> Beatmap
 {
     (void) filepath;
 
@@ -40,7 +36,7 @@ Beatmap ClassicMapCreator::createBeatmap(const std::string& filepath) const
         init.initializer.intervals = input_intervals;
         init.initializer.perfect_offset = bpm_iterator;
         init.hold = false;
-        init.initializer.context = _context;
+        init.initializer.context = &context;
 
         element.element.coordinates = {x, 390.};
         element.element.falling_curve_interpolation = {};
diff --git a/modes/classicmode/game/classicmapcreator.h b/modes/classicmode/game/classicmapcreator.h
index 7ede8bb..87a2e11 100644
--- a/modes/classicmode/game/classicmapcreator.h
+++ b/modes/classicmode/game/classicmapcreator.h
@@ -5,7 +5,8 @@
 #include "tools/mathutils.h"
 #include "classicnote.h"
 
-struct Context;
+namespace classic
+{
 
 struct Beatmap
 {
@@ -13,13 +14,7 @@ struct Beatmap
     microsec visibility_offset;
 };
 
-class ClassicMapCreator
-{
-public:
-    explicit ClassicMapCreator(const std::shared_ptr<Context>& context);
+Beatmap createBeatmap(const std::string& filepath, const Context& context);
 
-     Beatmap createBeatmap(const std::string& filepath) const;
+}
 
-private:
-    const std::shared_ptr<Context> _context;
-};
diff --git a/modes/classicmode/game/classicnote.h b/modes/classicmode/game/classicnote.h
index 38482da..eb20c19 100644
--- a/modes/classicmode/game/classicnote.h
+++ b/modes/classicmode/game/classicnote.h
@@ -45,5 +45,5 @@ protected:
     const PrecisionEvaluator<Grade> _evaluator;
 
     State _state;
-    std::shared_ptr<Context> _context;
+    const Context *_context;
 };
diff --git a/modes/classicmode/game/initializers/noteinitializer.h b/modes/classicmode/game/initializers/noteinitializer.h
index cd5108d..6a98596 100644
--- a/modes/classicmode/game/initializers/noteinitializer.h
+++ b/modes/classicmode/game/initializers/noteinitializer.h
@@ -8,7 +8,7 @@
 
 struct NoteInitializer
 {
-    std::shared_ptr<Context> context;
+    const Context *context;
     std::vector<microsec> intervals;
     microsec perfect_offset = 0;
 };
diff --git a/src/application/application.cpp b/src/application/application.cpp
index 3e575ec..4bbb681 100644
--- a/src/application/application.cpp
+++ b/src/application/application.cpp
@@ -17,8 +17,6 @@ Application::Application() :
 {
     _font_holder.load(Fonts::Id::GUI, "SourceCodePro-Regular.ttf");
 
-    _game = classic::init(_game_window);
-
     _game_window.setFramerateLimit(60);
     _game_window.setKeyRepeatEnabled(false);
     _game_window.setMouseCursorGrabbed(false);
@@ -33,7 +31,7 @@ Application::Application() :
     EditorState::Callbacks editor_callbacks = {[&](){ popState(); }};
 
     const auto main_menu = std::make_shared<MainMenu>(_game_window, std::move(callbacks), _font_holder);
-    const auto game_state = std::make_shared<GameState>(_game_window, _game, GameState::Callbacks());
+    const auto game_state = std::make_shared<GameState>(_game_window, classic::init(_game_window), GameState::Callbacks());
     const auto editor = std::make_shared<EditorState>(_game_window, std::move(editor_callbacks), std::make_unique<Music>(), _font_holder);
 
     _states[GUIState::Tag::MAIN_MENU] = main_menu;
diff --git a/src/application/application.h b/src/application/application.h
index e474dff..d762c6b 100644
--- a/src/application/application.h
+++ b/src/application/application.h
@@ -1,5 +1,4 @@
-#ifndef APPLICATION_H
-#define APPLICATION_H
+#pragma once
 
 #include <vector>
 #include <memory>
@@ -14,12 +13,13 @@
 #include "core/game.h"
 #include "state.h"
 
+#include "tools/music.h"
 #include "tools/resourceholder.h"
 
 class Application
 {
 public:
-    Application();
+    explicit Application();
     void run();
     void input();
     void update(const sf::Time& dt);
@@ -30,7 +30,7 @@ private:
     std::vector<std::shared_ptr<GUIState>> _state_stack;
 
     sf::RenderWindow _game_window;
-    std::shared_ptr<Game> _game;
+    Music _music;
 
     void exec();
     void pushState(GUIState::Tag new_state);
@@ -38,5 +38,3 @@ private:
 
     FontHolder _font_holder;
 };
-
-#endif // APPLICATION_H
diff --git a/src/application/widgets/editorwidget.cpp b/src/application/widgets/editorwidget.cpp
index 4914201..5d7e060 100644
--- a/src/application/widgets/editorwidget.cpp
+++ b/src/application/widgets/editorwidget.cpp
@@ -1,4 +1,5 @@
 #include "editorwidget.h"
+#include "core/editor.h"
 
 EditorWidget::EditorWidget(const std::shared_ptr<Editor>& editor) :
     _editor(editor)
@@ -6,45 +7,49 @@ EditorWidget::EditorWidget(const std::shared_ptr<Editor>& editor) :
 
 void EditorWidget::input(const sf::Event& event)
 {
-
+    _editor->input(PlayerInput{0, event});
 }
 
 void EditorWidget::update(const sf::Time& dt)
 {
-
+    _editor->update(dt);
 }
 
 void EditorWidget::draw(sf::RenderTarget& target, sf::RenderStates states) const
 {
-
+    // !!!!!!!!!!!!!!!!!
+    (void)target; (void)states;
+    _editor->draw();
 }
 
 void EditorWidget::move(const sf::Vector2f& delta)
 {
-
+    (void)delta;
+    // delegate to children
 }
 
 bool EditorWidget::isUnderMouse(int mouse_x, int mouse_y) const
 {
-
+    return _parent->isUnderMouse(mouse_x, mouse_y);
 }
 
 void EditorWidget::setRect(const sf::FloatRect& rect)
 {
-
+    (void)rect;
+    // basically useless beacuse editor widget fills the entire screen
 }
 
 sf::FloatRect EditorWidget::rect() const
 {
-
+    return {};
 }
 
 void EditorWidget::setPosition(const sf::Vector2f& position)
 {
-
+    (void)position;
 }
 
 sf::Vector2f EditorWidget::position() const
 {
-
+    return {};
 }
diff --git a/tools/shared/tools/music.h b/tools/shared/tools/music.h
index 49e5bba..2d597ab 100644
--- a/tools/shared/tools/music.h
+++ b/tools/shared/tools/music.h
@@ -16,6 +16,8 @@ public:
     void pause();
     void stop();
 
+    bool isPaused() const;
+
     void setVolume(int volume);
 
     void setOffset(const microsec& offset);
diff --git a/tools/src/music.cpp b/tools/src/music.cpp
index 9041369..833f16c 100644
--- a/tools/src/music.cpp
+++ b/tools/src/music.cpp
@@ -27,6 +27,11 @@ void Music::stop()
     _music.stop();
 }
 
+bool Music::isPaused() const
+{
+    return (_music.getStatus() == sf::Music::Paused);
+}
+
 void Music::setVolume(int volume)
 {
     _music.setVolume(volume);