In the episode "A Silent Time" does anyone know the OST that plays when Ultear is talking about Wendy and Chelia's determination?

At the end of season 2 of Stardust Crusaders, the blood from Dio's corpse was transfused back to Joseph Joestar. However, as seen before in the series, the contact of Dio's blood with a corpse makes the corpse a Vampire. It was also explicitly stated that Dio's body was still not "dead". Then why...