This fact
Well, all the singles starting from Tomoshibi, released in 2014, to the single preceding Kyouka Suigetsu, called Akaimi Hajiketa, have instrumental tracks in their track listings. And their newest single does too.
However, no other release from them seems to have instrumental tracks. Kiryu is not the kind of band one would do at Karaoke anyway due to the fact that Mahiro’s vocal style is quite complex. In some cases, Rinkaku by Dir En Grey (Which is the reason Kyo, the lead singer of Dir En Grey, holds a world record for one of the highest vocal ranges in Metal) could be easier to sing
Well… I don’t think so. For example, lots of enka tracks have karaoke, even if some (majority of) songs are complex to sing. Also, for example Gackt’s works
I know some people who have most of Kiryu’s singles though and they say for the most part, it’s only the singles: Tomoshibi, Etsu to Utsu, Aien Kien, and Akaimi Hajiketa that have Karaoke tracks.
VisualKei bands don’t often release karaoke tracks anyway, since it’s not common in general to do rock songs and Metal songs at Karaoke
Ah, ok. Sorry!