Million Perfect Letters Copyright (c) 2020, 4am Due to the inclusion of several GPL-licensed libraries (see below), the program as a whole is licensed under the GPL 3.0 or later. However, all of my original code is also licensed under the MIT license, meaning you are free to reuse those individual files in your own projects (minus the third-party sound libraries) without requiring GPL licensing. MIT-licensed files are tagged with a comment ";license:MIT" on the first line of each file. Standard MIT license, which applies to all such tagged files: 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. ~ Courier Double Prime Copyright (c) 2019-2020, 4am with Reserved Font Name "Courier Double Prime" This font is licensed under the SIL Open Font License, Version 1.1. See "res/Courier Double Prime/OFL.txt" for the full license text. It is a derivative work, a mostly faithful conversion of Courier Prime to the Apple ][ hi-res graphics screen. Courier Prime Copyright (c) 2015, Quote-Unquote Apps (http://quoteunquoteapps.com) with Reserved Font Name "Courier Prime" Courier Prime was designed by Alan Dague-Greene for John August and Quote-Unquote Apps. Courier Prime is licensed under the SIL Open Font License, Version 1.1. https://quoteunquoteapps.com/courierprime/ ~ Heavy Silk Copyright (c) 2020, 4am with Reserved Font Name "Heavy Silk" This font is licensed under the SIL Open Font License, Version 1.1. It is an original work; it is not based on any other font. See "res/Heavy Silk/OFL.txt" for the full license text. ~ Electric Duet player Copyright (c) 1979-2015, Paul Lutus http://arachnoid.com/administration 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; either version 2 of the License, or (at your option) any later version. 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, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. See "res/gpl-2.0.txt" for the full license text. ~ MockingDuet player Copyright (c) 2017, cybernesto 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, either version 3 of the License, or (at your option) any later version. 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 . See "res/gpl-3.0.txt" for the full license text. ~ The main menu music is "Sicilienne" by Gabriel Fauré. I downloaded it from https://www.mutopiaproject.org/ftp/FaureG/O78/faure-sicilienne-guitare-doigtee/ faure-sicilienne-guitare-doigtee-a4.pdf and converted it to the Electric Duet file format. My conversion is released to the public domain. See "res/Sicilienne score.zip" for the original score as a PDF.