Only the current version so far — new entries appear as the app ships updates.
音符と時計のライブ壁紙 is a personalization app by Wallpapers&Maps with 1,000+ downloads (about 4.2K estimated). Released May 31, 2015. Install growth, rank history, SDKs and ad networks.
From the store listing: “It is a live wallpaper that the image of a note.
We've placed a clock next to the note.”