"Dedicated to those who have fallen into paradise..."
Major 1st Album Elysion −楽園への前奏曲− (Hepburn: Elysion −Rakuen e no Zensōkyoku−, lit. "Elysion −Prelude to Paradise−") is Sound Horizon's first commercial debut album. Released on October 27th, 2004 this album marks the anniversary of Sound Horizon. The album contains 8 tracks, with 6 being from the doujin era and 2 teasing their next release Elysion ～楽園幻想物語組曲～. Because it is a commercial debut album it was made for new audiences to understand the style of SH. In September of 2004, after this album was scheduled for preorder, the number of reservations ranked number 1 in Japan's Amazon reservations list. This album, along with 10 others, was remastered in 2020 for Sound Horizon's 15th Anniversary.
Elysion −楽園への前奏曲− (Re:Master Production) (Hepburn: Elysion −Rakuen e no Zensōkyoku−, lit. "Elysion −Prelude to Paradise−") is a remastered version of the 2005 album Elysion −楽園への前奏曲−. Released on July 29th, 2020 it features all of the original tracks on the album. Under Revo's supervision, and using the latest technology, Bellwood Records released this album in a "Sound Horizon Around 15th Anniversary Re:Master Production" series. The person in charge of remastering this album was 前田康二 (Yasuji Maeda) a mastering engineer who studied under the legendary sound engineer Bernie Grundman. the first press limited edition contains a specially illustrated postcard by yokoyan. For Fanclub members only, Sound Horizon Around 15th Anniversary Re:Master Production Complete Set was sold in two parts, the first half being shipped on July 29, 2020 and the second half shipping on October 21st. This album is contained in the first half. The complete set retailed for ￥30,000, about $280 USD.