320BPM（1秒間に5.3音）<この書き方は誤解を招く。実際の音数はその4倍。/500BPMだと1分に2000音を弾くことができ…

Default Widget

This is Sidebar 1. You can edit the content that appears here by visiting your Widgets panel and modifying the current widgets in Sidebar 1. Or, if you want to be a true ninja, you can add your own content to this sidebar by using the appropriate hooks.