On Wikipedia it says that Kenichi Matsubara created the soundtrack to Haunted Castle and Castlevania 2.
But on many sites it says Haunted Castle came first and then Castlevania 2 (which means Bloody Tears actually comes from HC and not CV2).
I then see that CV2 was released on the FDS the year before Haunted Castle's release.
So, Bloody Tears, in what game was it originally featured? On HC or CV2?
Looking at release dates I would say CV2 FDS had it first, but every site credits it to Haunted Castle.
Is it possible that HC was supposed to come out first but the FDS version beat it to the race?