http://akizukidenshi.com/catalog/g/gI-12141/
https://github.com/cstoquer/YMZ294-seq
https://qiita.com/toyoshim/items/22a173d267f3c90fe36f
https://github.com/toyoshim/SoundCortex
https://qiita.com/toyoshim/items/feef1f44c2ddf6bb44df
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