From Famicom Disk System to PlayStation 1, MUSIC COLLECTION OF TANTEI JINGUUJI SABUROU 1987-1999:
https://mega.nz/#!KGwxWZaJ!5aIZVg8PVwuaiGc-YA3UEECZmTd_PNRa9NmVx4K8VL8
And yes, there will be Ongaku-shuu II (and maybe III as well)
You know what SUCKS… I actually owned ‘Jake Hunter -Memories from the Past-‘ game once, but I sold it! Well, I thought it would be easy to find, and I was VERY wrong, even in eBay it is over 100 euros nowadays! O_o
Thanks for the godlike work!!!!!