EasyPop
Preview this chart online, switch difficulty, adjust playback speed and share a playback position. "ハッピーシンセサイザ" is an AstroDX chart by EasyPop, archived under the "maimai / SD" branch, genre niconico & VOCALOID, BPM 127. This archive lists 4 difficulties (levels 5.0–12.5), including audio, a jacket image, available to browse and download.
