On these albums
Nano UniverseBarbarian on the Groove · 2009
BALDR Vocal CollectionVarious Artists · 2010
Barbarian On The Groove Works Collection 2ndBarbarian On The Groove · 2011
BALDRSKY COMPLETE VOCAL COLLECTIONVarious Artists · 2014Soundtrack
BALDR MASTERPIECE CHRONICLE Complete Vocal Collection & Soundtrack: Complete ArchivesGIGA · 2017Soundtrack
Source: MusicBrainz recording 3b2b91d2-66a9-4515-b6a0-d6302b7ee6ee (CC0).