diff --git a/Sources/Keyboard/KeyContainer.swift b/Sources/Keyboard/KeyContainer.swift
index 36bf176..40c0e4b 100644
--- a/Sources/Keyboard/KeyContainer.swift
+++ b/Sources/Keyboard/KeyContainer.swift
@@ -1,3 +1,5 @@
+// Copyright AudioKit. All Rights Reserved. Revision History at http://github.com/AudioKit/Keyboard/
+
 import SwiftUI
 import Tonic
 
diff --git a/Sources/Keyboard/Keyboard.swift b/Sources/Keyboard/Keyboard.swift
index 402b6c5..fb4b501 100644
--- a/Sources/Keyboard/Keyboard.swift
+++ b/Sources/Keyboard/Keyboard.swift
@@ -1,3 +1,5 @@
+// Copyright AudioKit. All Rights Reserved. Revision History at http://github.com/AudioKit/Keyboard/
+
 import SwiftUI
 @_exported import Tonic
 
diff --git a/Sources/Keyboard/KeyboardKey.swift b/Sources/Keyboard/KeyboardKey.swift
index fd0be58..c9bdeca 100644
--- a/Sources/Keyboard/KeyboardKey.swift
+++ b/Sources/Keyboard/KeyboardKey.swift
@@ -1,3 +1,5 @@
+// Copyright AudioKit. All Rights Reserved. Revision History at http://github.com/AudioKit/Keyboard/
+
 import SwiftUI
 import Tonic
 
diff --git a/Sources/Keyboard/KeyboardModel.swift b/Sources/Keyboard/KeyboardModel.swift
index 93a3cc5..03b3dac 100644
--- a/Sources/Keyboard/KeyboardModel.swift
+++ b/Sources/Keyboard/KeyboardModel.swift
@@ -1,3 +1,5 @@
+// Copyright AudioKit. All Rights Reserved. Revision History at http://github.com/AudioKit/Keyboard/
+
 import SwiftUI
 import Tonic
 
diff --git a/Sources/Keyboard/Layouts/Guitar.swift b/Sources/Keyboard/Layouts/Guitar.swift
index 126272e..e564c30 100644
--- a/Sources/Keyboard/Layouts/Guitar.swift
+++ b/Sources/Keyboard/Layouts/Guitar.swift
@@ -1,3 +1,5 @@
+// Copyright AudioKit. All Rights Reserved. Revision History at http://github.com/AudioKit/Keyboard/
+
 import SwiftUI
 import Tonic
 
diff --git a/Sources/Keyboard/Layouts/Isomorphic.swift b/Sources/Keyboard/Layouts/Isomorphic.swift
index 872da15..da3e726 100644
--- a/Sources/Keyboard/Layouts/Isomorphic.swift
+++ b/Sources/Keyboard/Layouts/Isomorphic.swift
@@ -1,3 +1,5 @@
+// Copyright AudioKit. All Rights Reserved. Revision History at http://github.com/AudioKit/Keyboard/
+
 import SwiftUI
 import Tonic
 
diff --git a/Sources/Keyboard/Layouts/KeyboardLayout.swift b/Sources/Keyboard/Layouts/KeyboardLayout.swift
index 851f592..2096a22 100644
--- a/Sources/Keyboard/Layouts/KeyboardLayout.swift
+++ b/Sources/Keyboard/Layouts/KeyboardLayout.swift
@@ -1,3 +1,5 @@
+// Copyright AudioKit. All Rights Reserved. Revision History at http://github.com/AudioKit/Keyboard/
+
 import SwiftUI
 import Tonic
 
diff --git a/Sources/Keyboard/Layouts/Piano.swift b/Sources/Keyboard/Layouts/Piano.swift
index c47a33b..ac38dcc 100644
--- a/Sources/Keyboard/Layouts/Piano.swift
+++ b/Sources/Keyboard/Layouts/Piano.swift
@@ -1,3 +1,5 @@
+// Copyright AudioKit. All Rights Reserved. Revision History at http://github.com/AudioKit/Keyboard/
+
 import SwiftUI
 import Tonic
 
diff --git a/Sources/Keyboard/Layouts/PianoSpacer.swift b/Sources/Keyboard/Layouts/PianoSpacer.swift
index bcd9d27..0ea5d08 100644
--- a/Sources/Keyboard/Layouts/PianoSpacer.swift
+++ b/Sources/Keyboard/Layouts/PianoSpacer.swift
@@ -1,3 +1,5 @@
+// Copyright AudioKit. All Rights Reserved. Revision History at http://github.com/AudioKit/Keyboard/
+
 import SwiftUI
 import Tonic
 
diff --git a/Sources/Keyboard/Layouts/VerticalIsomorphic.swift b/Sources/Keyboard/Layouts/VerticalIsomorphic.swift
index 1ee2c9e..1345191 100644
--- a/Sources/Keyboard/Layouts/VerticalIsomorphic.swift
+++ b/Sources/Keyboard/Layouts/VerticalIsomorphic.swift
@@ -1,3 +1,5 @@
+// Copyright AudioKit. All Rights Reserved. Revision History at http://github.com/AudioKit/Keyboard/
+
 import SwiftUI
 import Tonic
 
diff --git a/Sources/Keyboard/Layouts/VerticalPiano.swift b/Sources/Keyboard/Layouts/VerticalPiano.swift
index d7d6e90..d36a729 100644
--- a/Sources/Keyboard/Layouts/VerticalPiano.swift
+++ b/Sources/Keyboard/Layouts/VerticalPiano.swift
@@ -1,3 +1,5 @@
+// Copyright AudioKit. All Rights Reserved. Revision History at http://github.com/AudioKit/Keyboard/
+
 import SwiftUI
 import Tonic
 
diff --git a/Sources/Keyboard/MultitouchView.swift b/Sources/Keyboard/MultitouchView.swift
index c32a876..a6682ca 100644
--- a/Sources/Keyboard/MultitouchView.swift
+++ b/Sources/Keyboard/MultitouchView.swift
@@ -1,3 +1,5 @@
+// Copyright AudioKit. All Rights Reserved. Revision History at http://github.com/AudioKit/Keyboard/
+
 import SwiftUI
 
 public typealias TouchCallback = ([CGPoint]) -> Void
diff --git a/Sources/Keyboard/PreferenceKeys.swift b/Sources/Keyboard/PreferenceKeys.swift
index d145bb7..17ead89 100644
--- a/Sources/Keyboard/PreferenceKeys.swift
+++ b/Sources/Keyboard/PreferenceKeys.swift
@@ -1,3 +1,5 @@
+// Copyright AudioKit. All Rights Reserved. Revision History at http://github.com/AudioKit/Keyboard/
+
 import SwiftUI
 import Tonic
 
diff --git a/Tests/KeyboardTests/KeyboardTests.swift b/Tests/KeyboardTests/KeyboardTests.swift
index b452658..a5cfbf5 100644
--- a/Tests/KeyboardTests/KeyboardTests.swift
+++ b/Tests/KeyboardTests/KeyboardTests.swift
@@ -1,3 +1,5 @@
+// Copyright AudioKit. All Rights Reserved. Revision History at http://github.com/AudioKit/Keyboard/
+
 @testable import Keyboard
 import Tonic
 import XCTest