ACE is a duo and ACE+ a trio of musical artists. The group ACE comprises of the duo Tomori Kudo and Hiroyo "CHiCO" Yamanaka; the plus sign was added when Kenji Hiramatsu joined the group, thus ACE+. ACE+ have composed and arranged numerous tracks for Xenoblade Chronicles in addition to other works, and ACE and Kenji Hiramatsu separately for Xenoblade Chronicles 2.

Xenoblade Chronicles credits

ACE+ is credited as composer for the following tracks from the Xenoblade Original Soundtrack (all credits are per the in-game Jukebox, and this artist is credited as both composer and arranger of these tracks):

The following are the sound group's arranger credits only (again per Jukebox):