--- a/mt-32-display.cpp	Tue May 19 16:01:09 2020 +0200
+++ b/mt-32-display.cpp	Tue May 19 16:03:25 2020 +0200
@@ -1,3 +1,19 @@
+/**
+ * SysEx message encoder for Roland MT-32
+ * Copyright © 2020 František Kučera (Frantovo.cz, GlobalCode.info)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
 #include <iostream>
 #include <iomanip>