diff --git a/sequence_task_1/student/include/impl.h b/sequence_task_1/student/include/impl.h
index e03f3e9..d81b998 100644
--- a/sequence_task_1/student/include/impl.h
+++ b/sequence_task_1/student/include/impl.h
@@ -8,33 +8,71 @@ class StaticPlaylist
 {
 public:
     /** @todo Member traits */
-
+    using reference = Song_t&;
+    using const_reference = typename Container::const_reference;
+    using const_iterator = typename Container::const_iterator;
+    using difference_type = typename Container::difference_type;
+    using iterator = typename Container::iterator;
+    using size_type = typename std::size_t;
+    using value_type = typename Container::value_type;
+    
     /** @todo Iterators */
+    const_iterator begin() const {
+        return m_tracklist.cbegin();
+    }
+    const_iterator end() const {
+        return m_tracklist.cend();
+    }
 
     StaticPlaylist() = default;
 
     /** @todo Constructor from any reversible sequence container */
+    template<class T>
+    StaticPlaylist(const T& container) :
+        m_tracklist(container.rbegin(), container.rend()) {}
 
     /** @todo Assignment from any reversible sequence container */
+    template<class T>
+    StaticPlaylist<Container, Song_t>& operator=(const T& container) {
+        m_tracklist.assign(container.rbegin(), container.rend());
+        return *this;
+    }
 
     /** @todo Add track from initializer */
     template<class... Args>
-    const Song_t& play(Args&&... songData);
+    const Song_t& play(Args&&... songData) {
+        m_tracklist.emplace_back(std::forward<Args>(songData)...);
+        return current();
+    }
 
     /** @todo Add track */
-    const Song_t& play(const Song_t& song);
+    const Song_t& play(const Song_t& song) {
+        m_tracklist.push_back(song);
+        return current();
+    }
 
     /** @todo Get first track in playlist stack */
-    const Song_t& current() const;
+    const Song_t& current() const {
+        return m_tracklist.back();
+    }
 
     /** @todo Skip to the next track in playlist, remove current */
-    void switchNext();
+    void switchNext() {
+        if (!hasTracks())
+            throw std::out_of_range("Track list is empty");
+
+        m_tracklist.pop_back();
+    }
 
     /** @todo Amount of tracks in playlist */
-    size_type count() const;
+    size_type count() const {
+        return m_tracklist.size();
+    }
 
     /** @todo Checks if playlist has any playable tracks */
-    bool hasTracks() const;
+    bool hasTracks() const {
+        return !m_tracklist.empty();
+    }
 
 private:
     Container m_tracklist;