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+Circle of Fifths 五度圈 (c) by 官大為 - Wiwi Kuan
+
+Circle of Fifths 五度圈 is licensed under a
+Creative Commons Attribution-ShareAlike 4.0 International License.
+
+You should have received a copy of the license along with this
+work. If not, see <http://creativecommons.org/licenses/by-sa/4.0/>.