{"title":"6弦とピアノのためのエチュード op.4","artist":"ke-ji","ascii":"rokugentopiano_keji","bpm":"110-280","release_date":"2015-09-10","version":3,"difficulties":[{"diff":"NOVICE","level":4.0,"illustrator":"ロゼル","effector":"浮世マシーン"},{"diff":"ADVANCED","level":10.0,"illustrator":"ロゼル","effector":"浮世マシーン"},{"diff":"EXHAUST","level":16.0,"illustrator":"ロゼル","effector":"浮世マシーン"}]}