diff --git a/audio.js b/audio.js
index cd96095..843bd00 100644
--- a/audio.js
+++ b/audio.js
@@ -6,6 +6,9 @@ window.log = function f(){ log.history = log.history || []; log.history.push(arg
 (function(){try{console.log();return window.console;}catch(a){return (window.console={});}}());
 
 
+/*! Copyright (c) 2013 - Peter Coles (mrcoles.com)
+ *  Licensed under the MIT license: http://mrcoles.com/media/mit-license.txt
+ */
 (function() {
 
     // test if we can use blobs
diff --git a/license.txt b/license.txt
new file mode 100644
index 0000000..aed63b1
--- /dev/null
+++ b/license.txt
@@ -0,0 +1,21 @@
+The MIT License
+
+Copyright (c) 2013 Peter Coles (http://mrcoles.com/)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/piano.css b/piano.css
index 9d0fff3..b7c96c5 100644
--- a/piano.css
+++ b/piano.css
@@ -1,3 +1,7 @@
+/*! Copyright (c) 2013 - Peter Coles (mrcoles.com)
+ *  Licensed under the MIT license: http://mrcoles.com/media/mit-license.txt
+ */
+
 html,body,div,span,h1,p{margin:0;padding:0;}
 
 html {
diff --git a/piano.js b/piano.js
index e79acae..3cdf687 100644
--- a/piano.js
+++ b/piano.js
@@ -1,3 +1,6 @@
+/*! Copyright (c) 2013 - Peter Coles (mrcoles.com)
+ *  Licensed under the MIT license: http://mrcoles.com/media/mit-license.txt
+ */
 
 (function() {