The Music of Lunar Knights
Here you can listen to the soundtrack of Lunar Knights for as long as this playlist is hosted on YouTube. Shout-out to MSX for uploading all of this!
For some reason, YouTube won't let me embed the entire playlist here, so I'll just include the first track below, and link to the rest of the playlist here. Apologies for the inconvenience.
This soundtrack is also hosted for download at Zophar's Domain.
Lunar Knights' soundtrack was composed by Kazuki Muraoka, Masashi Watanabe, and Shuichi Kobori.
In contrast to its predecessors, Lunar Knights opts for an updated, more jazz-inspired soundtrack. This is apparent right from the game's title screen, with a bombastic, almost Big Band tune welcoming you to a whole new adventure.
East of the Sun & West of the Moon
[Listen on the Internet Archive]
Boktai Sound Rare Tracks: East of the Sun & West of the Moon was a limited-release soundtrack given out with early pre-orders of Boktai DS in Japan.
It contains previously unreleased orchestral versions of title tracks and other music from all 4 Boktai games.