diff --git a/osu.Desktop.VisualTests/Tests/TestCaseGamefield.cs b/osu.Desktop.VisualTests/Tests/TestCaseGamefield.cs
index a44780d673..e2cd2bf67b 100644
--- a/osu.Desktop.VisualTests/Tests/TestCaseGamefield.cs
+++ b/osu.Desktop.VisualTests/Tests/TestCaseGamefield.cs
@@ -18,7 +18,6 @@ using osu.Game.Rulesets.Taiko.UI;
 using System.Collections.Generic;
 using osu.Desktop.VisualTests.Beatmaps;
 using osu.Framework.Allocation;
-using osu.Game.Beatmaps.Timing;
 using osu.Game.Beatmaps.ControlPoints;
 
 namespace osu.Desktop.VisualTests.Tests
diff --git a/osu.Desktop.VisualTests/Tests/TestCaseManiaPlayfield.cs b/osu.Desktop.VisualTests/Tests/TestCaseManiaPlayfield.cs
index 88f90fc333..ec50f19f98 100644
--- a/osu.Desktop.VisualTests/Tests/TestCaseManiaPlayfield.cs
+++ b/osu.Desktop.VisualTests/Tests/TestCaseManiaPlayfield.cs
@@ -7,11 +7,9 @@ using osu.Framework.Graphics;
 using osu.Game.Rulesets.Mania.UI;
 using System;
 using System.Collections.Generic;
-using osu.Game.Beatmaps.Timing;
 using OpenTK;
 using osu.Game.Rulesets.Mania.Objects.Drawables;
 using osu.Game.Rulesets.Mania.Objects;
-using osu.Game.Beatmaps.ControlPoints;
 using osu.Game.Rulesets.Mania.Timing;
 
 namespace osu.Desktop.VisualTests.Tests
diff --git a/osu.Game.Rulesets.Mania/Beatmaps/Patterns/Legacy/DistanceObjectPatternGenerator.cs b/osu.Game.Rulesets.Mania/Beatmaps/Patterns/Legacy/DistanceObjectPatternGenerator.cs
index 1209a5c879..718e0967da 100644
--- a/osu.Game.Rulesets.Mania/Beatmaps/Patterns/Legacy/DistanceObjectPatternGenerator.cs
+++ b/osu.Game.Rulesets.Mania/Beatmaps/Patterns/Legacy/DistanceObjectPatternGenerator.cs
@@ -5,7 +5,6 @@ using System;
 using System.Linq;
 using osu.Game.Audio;
 using osu.Game.Beatmaps;
-using osu.Game.Beatmaps.Timing;
 using osu.Game.Rulesets.Mania.MathUtils;
 using osu.Game.Rulesets.Objects;
 using osu.Game.Rulesets.Objects.Types;
diff --git a/osu.Game.Rulesets.Mania/Beatmaps/Patterns/Legacy/HitObjectPatternGenerator.cs b/osu.Game.Rulesets.Mania/Beatmaps/Patterns/Legacy/HitObjectPatternGenerator.cs
index 4547c3d4a3..b1ba99d98b 100644
--- a/osu.Game.Rulesets.Mania/Beatmaps/Patterns/Legacy/HitObjectPatternGenerator.cs
+++ b/osu.Game.Rulesets.Mania/Beatmaps/Patterns/Legacy/HitObjectPatternGenerator.cs
@@ -7,7 +7,6 @@ using OpenTK;
 using osu.Game.Audio;
 using osu.Game.Beatmaps;
 using osu.Game.Beatmaps.ControlPoints;
-using osu.Game.Beatmaps.Timing;
 using osu.Game.Rulesets.Mania.MathUtils;
 using osu.Game.Rulesets.Mania.Objects;
 using osu.Game.Rulesets.Objects;
diff --git a/osu.Game.Rulesets.Mania/Objects/HoldNote.cs b/osu.Game.Rulesets.Mania/Objects/HoldNote.cs
index b0a0ed10b8..30e71aeb5d 100644
--- a/osu.Game.Rulesets.Mania/Objects/HoldNote.cs
+++ b/osu.Game.Rulesets.Mania/Objects/HoldNote.cs
@@ -3,7 +3,6 @@
 
 using osu.Game.Audio;
 using osu.Game.Beatmaps.ControlPoints;
-using osu.Game.Beatmaps.Timing;
 using osu.Game.Database;
 using osu.Game.Rulesets.Mania.Judgements;
 using osu.Game.Rulesets.Objects.Types;
diff --git a/osu.Game.Rulesets.Mania/Objects/Note.cs b/osu.Game.Rulesets.Mania/Objects/Note.cs
index e91c00c145..6c0cacd277 100644
--- a/osu.Game.Rulesets.Mania/Objects/Note.cs
+++ b/osu.Game.Rulesets.Mania/Objects/Note.cs
@@ -2,7 +2,6 @@
 // Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
 
 using osu.Game.Beatmaps.ControlPoints;
-using osu.Game.Beatmaps.Timing;
 using osu.Game.Database;
 using osu.Game.Rulesets.Mania.Judgements;
 
diff --git a/osu.Game.Rulesets.Mania/Timing/ControlPointContainer.cs b/osu.Game.Rulesets.Mania/Timing/ControlPointContainer.cs
index 38e975f468..6d390464fe 100644
--- a/osu.Game.Rulesets.Mania/Timing/ControlPointContainer.cs
+++ b/osu.Game.Rulesets.Mania/Timing/ControlPointContainer.cs
@@ -7,7 +7,6 @@ using System.Linq;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using OpenTK;
-using osu.Game.Beatmaps.Timing;
 using osu.Game.Beatmaps.ControlPoints;
 
 namespace osu.Game.Rulesets.Mania.Timing
diff --git a/osu.Game.Rulesets.Mania/UI/Column.cs b/osu.Game.Rulesets.Mania/UI/Column.cs
index 12c4cea58c..c8cb5f6387 100644
--- a/osu.Game.Rulesets.Mania/UI/Column.cs
+++ b/osu.Game.Rulesets.Mania/UI/Column.cs
@@ -17,8 +17,6 @@ using System.Collections.Generic;
 using osu.Game.Rulesets.Objects.Drawables;
 using osu.Game.Rulesets.Mania.Objects;
 using osu.Game.Rulesets.Mania.Judgements;
-using osu.Game.Beatmaps.Timing;
-using osu.Game.Beatmaps.ControlPoints;
 using System;
 using osu.Framework.Configuration;
 
diff --git a/osu.Game.Rulesets.Mania/UI/ManiaHitRenderer.cs b/osu.Game.Rulesets.Mania/UI/ManiaHitRenderer.cs
index 8b3623cbab..95b7979e43 100644
--- a/osu.Game.Rulesets.Mania/UI/ManiaHitRenderer.cs
+++ b/osu.Game.Rulesets.Mania/UI/ManiaHitRenderer.cs
@@ -11,7 +11,6 @@ using osu.Framework.Graphics;
 using osu.Framework.Lists;
 using osu.Game.Beatmaps;
 using osu.Game.Beatmaps.ControlPoints;
-using osu.Game.Beatmaps.Timing;
 using osu.Game.Rulesets.Beatmaps;
 using osu.Game.Rulesets.Mania.Beatmaps;
 using osu.Game.Rulesets.Mania.Judgements;
diff --git a/osu.Game.Rulesets.Mania/UI/ManiaPlayfield.cs b/osu.Game.Rulesets.Mania/UI/ManiaPlayfield.cs
index c0915c5d82..ff763f87c4 100644
--- a/osu.Game.Rulesets.Mania/UI/ManiaPlayfield.cs
+++ b/osu.Game.Rulesets.Mania/UI/ManiaPlayfield.cs
@@ -19,10 +19,8 @@ using osu.Framework.Extensions.IEnumerableExtensions;
 using osu.Game.Rulesets.Objects.Drawables;
 using osu.Game.Rulesets.Mania.Timing;
 using osu.Framework.Input;
-using osu.Game.Beatmaps.Timing;
 using osu.Framework.Graphics.Transforms;
 using osu.Framework.MathUtils;
-using osu.Game.Beatmaps.ControlPoints;
 
 namespace osu.Game.Rulesets.Mania.UI
 {
diff --git a/osu.Game.Rulesets.Osu/Objects/OsuHitObject.cs b/osu.Game.Rulesets.Osu/Objects/OsuHitObject.cs
index c4b4e3fc4a..e6fd82e6c8 100644
--- a/osu.Game.Rulesets.Osu/Objects/OsuHitObject.cs
+++ b/osu.Game.Rulesets.Osu/Objects/OsuHitObject.cs
@@ -6,7 +6,6 @@ using OpenTK;
 using osu.Game.Rulesets.Osu.Objects.Drawables;
 using osu.Game.Rulesets.Objects.Types;
 using OpenTK.Graphics;
-using osu.Game.Beatmaps.Timing;
 using osu.Game.Database;
 using osu.Game.Beatmaps.ControlPoints;
 
diff --git a/osu.Game.Rulesets.Osu/Objects/Slider.cs b/osu.Game.Rulesets.Osu/Objects/Slider.cs
index 1a5065d17d..3b44e38d5e 100644
--- a/osu.Game.Rulesets.Osu/Objects/Slider.cs
+++ b/osu.Game.Rulesets.Osu/Objects/Slider.cs
@@ -2,7 +2,6 @@
 // Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
 
 using OpenTK;
-using osu.Game.Beatmaps.Timing;
 using osu.Game.Rulesets.Objects.Types;
 using System;
 using System.Collections.Generic;
diff --git a/osu.Game.Rulesets.Osu/Objects/Spinner.cs b/osu.Game.Rulesets.Osu/Objects/Spinner.cs
index 8c0a218108..eff60ba935 100644
--- a/osu.Game.Rulesets.Osu/Objects/Spinner.cs
+++ b/osu.Game.Rulesets.Osu/Objects/Spinner.cs
@@ -2,7 +2,6 @@
 // Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
 
 using osu.Game.Rulesets.Objects.Types;
-using osu.Game.Beatmaps.Timing;
 using osu.Game.Database;
 using osu.Game.Beatmaps.ControlPoints;
 
diff --git a/osu.Game.Rulesets.Taiko/Objects/DrumRoll.cs b/osu.Game.Rulesets.Taiko/Objects/DrumRoll.cs
index 857dd8d3a5..18e3016fc3 100644
--- a/osu.Game.Rulesets.Taiko/Objects/DrumRoll.cs
+++ b/osu.Game.Rulesets.Taiko/Objects/DrumRoll.cs
@@ -5,7 +5,6 @@ using osu.Game.Rulesets.Objects.Types;
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using osu.Game.Beatmaps.Timing;
 using osu.Game.Database;
 using osu.Game.Audio;
 using osu.Game.Beatmaps.ControlPoints;
diff --git a/osu.Game.Rulesets.Taiko/Objects/Hit.cs b/osu.Game.Rulesets.Taiko/Objects/Hit.cs
index cc15b5ab98..f31472d0fd 100644
--- a/osu.Game.Rulesets.Taiko/Objects/Hit.cs
+++ b/osu.Game.Rulesets.Taiko/Objects/Hit.cs
@@ -2,7 +2,6 @@
 // Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
 
 using osu.Game.Beatmaps.ControlPoints;
-using osu.Game.Beatmaps.Timing;
 using osu.Game.Database;
 
 namespace osu.Game.Rulesets.Taiko.Objects
diff --git a/osu.Game.Rulesets.Taiko/Objects/TaikoHitObject.cs b/osu.Game.Rulesets.Taiko/Objects/TaikoHitObject.cs
index a294a13521..4f87467706 100644
--- a/osu.Game.Rulesets.Taiko/Objects/TaikoHitObject.cs
+++ b/osu.Game.Rulesets.Taiko/Objects/TaikoHitObject.cs
@@ -2,7 +2,6 @@
 // Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
 
 using osu.Game.Beatmaps.ControlPoints;
-using osu.Game.Beatmaps.Timing;
 using osu.Game.Database;
 using osu.Game.Rulesets.Objects;
 using osu.Game.Rulesets.Taiko.UI;
diff --git a/osu.Game.Rulesets.Taiko/UI/TaikoHitRenderer.cs b/osu.Game.Rulesets.Taiko/UI/TaikoHitRenderer.cs
index f4d411e15f..662cace511 100644
--- a/osu.Game.Rulesets.Taiko/UI/TaikoHitRenderer.cs
+++ b/osu.Game.Rulesets.Taiko/UI/TaikoHitRenderer.cs
@@ -18,7 +18,6 @@ using osu.Game.Rulesets.Taiko.Replays;
 using OpenTK;
 using osu.Game.Rulesets.Beatmaps;
 using System.Linq;
-using osu.Game.Beatmaps.ControlPoints;
 
 namespace osu.Game.Rulesets.Taiko.UI
 {
diff --git a/osu.Game/Beatmaps/ControlPoints/ControlPointInfo.cs b/osu.Game/Beatmaps/ControlPoints/ControlPointInfo.cs
index 84b6dcfc20..5740c961b1 100644
--- a/osu.Game/Beatmaps/ControlPoints/ControlPointInfo.cs
+++ b/osu.Game/Beatmaps/ControlPoints/ControlPointInfo.cs
@@ -1,3 +1,6 @@
+// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
+// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
 using System.Collections.Generic;
 using System.Linq;
 using osu.Framework.Lists;
@@ -6,9 +9,24 @@ namespace osu.Game.Beatmaps.ControlPoints
 {
     public class ControlPointInfo
     {
+        /// <summary>
+        /// All timing points.
+        /// </summary>
         public readonly SortedList<TimingControlPoint> TimingPoints = new SortedList<TimingControlPoint>(Comparer<TimingControlPoint>.Default);
+
+        /// <summary>
+        /// All difficulty points.
+        /// </summary>
         public readonly SortedList<DifficultyControlPoint> DifficultyPoints = new SortedList<DifficultyControlPoint>(Comparer<DifficultyControlPoint>.Default);
+
+        /// <summary>
+        /// All sound points.
+        /// </summary>
         public readonly SortedList<SoundControlPoint> SoundPoints = new SortedList<SoundControlPoint>(Comparer<SoundControlPoint>.Default);
+
+        /// <summary>
+        /// All effect points.
+        /// </summary>
         public readonly SortedList<EffectControlPoint> EffectPoints = new SortedList<EffectControlPoint>(Comparer<EffectControlPoint>.Default);
 
         /// <summary>
diff --git a/osu.Game/Beatmaps/ControlPoints/DifficultyControlPoint.cs b/osu.Game/Beatmaps/ControlPoints/DifficultyControlPoint.cs
index abd9d05971..30c7884334 100644
--- a/osu.Game/Beatmaps/ControlPoints/DifficultyControlPoint.cs
+++ b/osu.Game/Beatmaps/ControlPoints/DifficultyControlPoint.cs
@@ -1,7 +1,13 @@
+// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
+// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
 namespace osu.Game.Beatmaps.ControlPoints
 {
     public class DifficultyControlPoint : ControlPoint
     {
+        /// <summary>
+        /// The speed multiplier at this control point.
+        /// </summary>
         public double SpeedMultiplier = 1;
     }
 }
\ No newline at end of file
diff --git a/osu.Game/Beatmaps/Formats/OsuLegacyDecoder.cs b/osu.Game/Beatmaps/Formats/OsuLegacyDecoder.cs
index 448b6b6b98..cb1d9d2fcd 100644
--- a/osu.Game/Beatmaps/Formats/OsuLegacyDecoder.cs
+++ b/osu.Game/Beatmaps/Formats/OsuLegacyDecoder.cs
@@ -8,7 +8,6 @@ using OpenTK.Graphics;
 using osu.Game.Beatmaps.Timing;
 using osu.Game.Beatmaps.Legacy;
 using osu.Game.Rulesets.Objects.Legacy;
-using System.Linq;
 using osu.Game.Beatmaps.ControlPoints;
 
 namespace osu.Game.Beatmaps.Formats
diff --git a/osu.Game/Graphics/Containers/BeatSyncedContainer.cs b/osu.Game/Graphics/Containers/BeatSyncedContainer.cs
index 3489a1550b..429a794a03 100644
--- a/osu.Game/Graphics/Containers/BeatSyncedContainer.cs
+++ b/osu.Game/Graphics/Containers/BeatSyncedContainer.cs
@@ -7,7 +7,6 @@ using osu.Framework.Configuration;
 using osu.Framework.Graphics.Containers;
 using osu.Game.Beatmaps;
 using osu.Game.Beatmaps.ControlPoints;
-using osu.Game.Beatmaps.Timing;
 
 namespace osu.Game.Graphics.Containers
 {
diff --git a/osu.Game/Rulesets/Objects/HitObject.cs b/osu.Game/Rulesets/Objects/HitObject.cs
index 6028464a46..5592681cab 100644
--- a/osu.Game/Rulesets/Objects/HitObject.cs
+++ b/osu.Game/Rulesets/Objects/HitObject.cs
@@ -3,7 +3,6 @@
 
 using osu.Game.Audio;
 using osu.Game.Beatmaps.ControlPoints;
-using osu.Game.Beatmaps.Timing;
 using osu.Game.Database;
 using osu.Game.Rulesets.Objects.Types;