ちょい弾き https://lit.link/masayuki0726?fbclid=PAY2xjawGoqjxleHRuA2FlbQIxMQABpkEZsjObjzYOz3TLbwVc7c6IJ08mDACisLjswJ3lO4Bd8QONoqgLsriG-A_aem_GB-fmgveW0d-09ppu9_bNQ
http://www.nicovideo.jp/watch/sm44295804
