diff --git a/DryWetMidi/Interaction/Notes/Note.cs b/DryWetMidi/Interaction/Notes/Note.cs
index d1bee32ec..680e4b2de 100644
--- a/DryWetMidi/Interaction/Notes/Note.cs
+++ b/DryWetMidi/Interaction/Notes/Note.cs
@@ -313,12 +313,12 @@ public FourBitNumber Channel
         /// <summary>
         /// Gets Note On timed event of the note.
         /// </summary>
-        internal TimedEvent TimedNoteOnEvent { get; } = new TimedEvent(new NoteOnEvent { Velocity = DefaultVelocity });
+        public TimedEvent TimedNoteOnEvent { get; } = new TimedEvent(new NoteOnEvent { Velocity = DefaultVelocity });
 
         /// <summary>
         /// Gets Note Off timed event of the note.
         /// </summary>
-        internal TimedEvent TimedNoteOffEvent { get; } = new TimedEvent(new NoteOffEvent { Velocity = DefaultOffVelocity });
+        public TimedEvent TimedNoteOffEvent { get; } = new TimedEvent(new NoteOffEvent { Velocity = DefaultOffVelocity });
 
         internal MusicTheory.Note UnderlyingNote => MusicTheory.Note.Get(NoteNumber);
 
diff --git a/DryWetMidi/Interaction/Notes/NotesManagingUtilities.cs b/DryWetMidi/Interaction/Notes/NotesManagingUtilities.cs
index 9159c8c43..2676521e9 100644
--- a/DryWetMidi/Interaction/Notes/NotesManagingUtilities.cs
+++ b/DryWetMidi/Interaction/Notes/NotesManagingUtilities.cs
@@ -1005,7 +1005,7 @@ internal static int ProcessNotesInternal(
             return iMatched;
         }
 
-        internal static IEnumerable<TimedObjectAt<ITimedObject>> GetNotesAndTimedEventsLazy(
+        public static IEnumerable<TimedObjectAt<ITimedObject>> GetNotesAndTimedEventsLazy(
             this IEnumerable<TimedObjectAt<TimedEvent>> timedEvents,
             NoteDetectionSettings settings)
         {
@@ -1084,14 +1084,14 @@ internal static IEnumerable<TimedObjectAt<ITimedObject>> GetNotesAndTimedEventsL
             }
         }
 
-        internal static IEnumerable<ITimedObject> GetNotesAndTimedEventsLazy(
+        public static IEnumerable<ITimedObject> GetNotesAndTimedEventsLazy(
             this IEnumerable<TimedEvent> timedEvents,
             NoteDetectionSettings settings)
         {
             return GetNotesAndTimedEventsLazy(timedEvents, settings, false);
         }
 
-        internal static IEnumerable<ITimedObject> GetNotesAndTimedEventsLazy(
+        public static IEnumerable<ITimedObject> GetNotesAndTimedEventsLazy(
             this IEnumerable<ITimedObject> timedObjects,
             NoteDetectionSettings settings,
             bool completeObjectsAllowed)
diff --git a/DryWetMidi/Interaction/TimedObject/TimedObjectAt.cs b/DryWetMidi/Interaction/TimedObject/TimedObjectAt.cs
index c2449a493..c4f2d5e24 100644
--- a/DryWetMidi/Interaction/TimedObject/TimedObjectAt.cs
+++ b/DryWetMidi/Interaction/TimedObject/TimedObjectAt.cs
@@ -1,6 +1,6 @@
 namespace Melanchall.DryWetMidi.Interaction
 {
-    internal sealed class TimedObjectAt<TObject>
+    public class TimedObjectAt<TObject>
         where TObject : ITimedObject
     {
         #region Constructor
diff --git a/DryWetMidi/Multimedia/Playback/Callbacks/NotePlaybackData.cs b/DryWetMidi/Multimedia/Playback/Callbacks/NotePlaybackData.cs
index f44660619..ee42f5dd7 100644
--- a/DryWetMidi/Multimedia/Playback/Callbacks/NotePlaybackData.cs
+++ b/DryWetMidi/Multimedia/Playback/Callbacks/NotePlaybackData.cs
@@ -66,18 +66,18 @@ private NotePlaybackData(bool playNote)
         /// </summary>
         public FourBitNumber Channel { get; }
 
-        internal bool PlayNote { get; }
+        public bool PlayNote { get; }
 
         #endregion
 
         #region Methods
 
-        internal NoteOnEvent GetNoteOnEvent()
+        public NoteOnEvent GetNoteOnEvent()
         {
             return new NoteOnEvent(NoteNumber, Velocity) { Channel = Channel };
         }
 
-        internal NoteOffEvent GetNoteOffEvent()
+        public NoteOffEvent GetNoteOffEvent()
         {
             return new NoteOffEvent(NoteNumber, OffVelocity) { Channel = Channel };
         }
diff --git a/DryWetMidi/Multimedia/Playback/PlaybackDataTracker.cs b/DryWetMidi/Multimedia/Playback/PlaybackDataTracker.cs
index 8706f25c0..e07b60643 100644
--- a/DryWetMidi/Multimedia/Playback/PlaybackDataTracker.cs
+++ b/DryWetMidi/Multimedia/Playback/PlaybackDataTracker.cs
@@ -7,7 +7,7 @@
 
 namespace Melanchall.DryWetMidi.Multimedia
 {
-    internal sealed class PlaybackDataTracker
+    public class PlaybackDataTracker
     {
         #region Nested enums
 
diff --git a/DryWetMidi/Multimedia/Playback/PlaybackEvent.cs b/DryWetMidi/Multimedia/Playback/PlaybackEvent.cs
index 5910aef14..8ee90dc6d 100644
--- a/DryWetMidi/Multimedia/Playback/PlaybackEvent.cs
+++ b/DryWetMidi/Multimedia/Playback/PlaybackEvent.cs
@@ -3,7 +3,7 @@
 
 namespace Melanchall.DryWetMidi.Multimedia
 {
-    internal sealed class PlaybackEvent
+    public class PlaybackEvent
     {
         #region Constructor
 
diff --git a/DryWetMidi/Multimedia/Playback/PlaybackEventMetadata/NotePlaybackEventMetadata.cs b/DryWetMidi/Multimedia/Playback/PlaybackEventMetadata/NotePlaybackEventMetadata.cs
index ba1c2f92e..d4b4e07ec 100644
--- a/DryWetMidi/Multimedia/Playback/PlaybackEventMetadata/NotePlaybackEventMetadata.cs
+++ b/DryWetMidi/Multimedia/Playback/PlaybackEventMetadata/NotePlaybackEventMetadata.cs
@@ -3,7 +3,7 @@
 
 namespace Melanchall.DryWetMidi.Multimedia
 {
-    internal sealed class NotePlaybackEventMetadata
+    public class NotePlaybackEventMetadata
     {
         #region Constructor
 
diff --git a/DryWetMidi/Multimedia/Playback/PlaybackEventMetadata/PlaybackEventMetadata.cs b/DryWetMidi/Multimedia/Playback/PlaybackEventMetadata/PlaybackEventMetadata.cs
index 6986e7aec..51cca5582 100644
--- a/DryWetMidi/Multimedia/Playback/PlaybackEventMetadata/PlaybackEventMetadata.cs
+++ b/DryWetMidi/Multimedia/Playback/PlaybackEventMetadata/PlaybackEventMetadata.cs
@@ -1,6 +1,6 @@
 namespace Melanchall.DryWetMidi.Multimedia
 {
-    internal sealed class PlaybackEventMetadata
+    public class PlaybackEventMetadata
     {
         public NotePlaybackEventMetadata Note { get; set; }
 
diff --git a/DryWetMidi/Multimedia/Playback/PlaybackEventMetadata/TimedEventPlaybackEventMetadata.cs b/DryWetMidi/Multimedia/Playback/PlaybackEventMetadata/TimedEventPlaybackEventMetadata.cs
index d852093ff..501aa2525 100644
--- a/DryWetMidi/Multimedia/Playback/PlaybackEventMetadata/TimedEventPlaybackEventMetadata.cs
+++ b/DryWetMidi/Multimedia/Playback/PlaybackEventMetadata/TimedEventPlaybackEventMetadata.cs
@@ -1,6 +1,6 @@
 namespace Melanchall.DryWetMidi.Multimedia
 {
-    internal sealed class TimedEventPlaybackEventMetadata
+    public class TimedEventPlaybackEventMetadata
     {
         #region Constructor
 
diff --git a/DryWetMidi/Multimedia/Playback/PlaybackEventsComparer.cs b/DryWetMidi/Multimedia/Playback/PlaybackEventsComparer.cs
index 773cd4873..2201e9f99 100644
--- a/DryWetMidi/Multimedia/Playback/PlaybackEventsComparer.cs
+++ b/DryWetMidi/Multimedia/Playback/PlaybackEventsComparer.cs
@@ -4,7 +4,7 @@
 
 namespace Melanchall.DryWetMidi.Multimedia
 {
-    internal sealed class PlaybackEventsComparer : IComparer<PlaybackEvent>
+    public class PlaybackEventsComparer : IComparer<PlaybackEvent>
     {
         #region IComparer<PlaybackEvent>