【初音ミクAppend SWEET】 Fireworks 【オリジナル曲・PV】

According to whoo, I think this was from the album "Supernova4" from EXIT TUNES.

music by whoo (mylist/15422895)
movie by 吉田ドンドリアン
encode by 7@ (user/10114232)

mp3: http://nicosound.anyap.info/sound/sm13613561

Nico source: http://www.nicovideo.jp/watch/sm13613561