https://doujinblog.org/%e5%90%8c%e4%ba%bacg%e9%9b%86191005-studio-bass-line-%e3%83%88%e3%82%b3%e3%83%8a%e3%83%84%e8%a4%90%e8%89%b2%e5%b0%91-%e3%81%ae%e3%83%a1%e3%82%b9%e5%a0%95%e3%81%a1%e5%a5%b3%e8%a3%85%e7%95%99/