[3] It was actually performed by hide's band Spread Beaver on the 1998 Tribal Ja, Zoo Tour, which the surviving members undertook using recordings.

[4] In a process that took two years, Yamaha utilized their Vocaloid technology to mimic the deceased musician's voice and complete the song after receiving an offer by Universal Music Japan.

[5] Kenji Arakawa, a spokesman for Yamaha, said he believes this to be the first time a work by a deceased artist is commercially available and includes the dead person singing lyrics completed after their death.

[7] The limited edition with a different cover also features hide's original demo of the song and a DVD of music videos and three television performances from the show Pop Jam.

[8] A music video for "Co Gal" created using unreleased footage of recording sessions in Los Angeles combined with previously seen material is also included.