Just noticed with my Pixel Tier from way back in the day

Hi,

I was just going through my humble bundle order as i noticed the soundtrack dlc (starbound) I have starbound activated on steam, but noticed i had the pixel tier which says soundtrack but cannot see it in my game dir, Im just looking at the download link at humblebundle but i suspect it will be the game and not soundtrack will know once its downloaded but any way to fix it so the soundtrack appears on my dlc list and not have to re-purchase it? (providing it makes sense) i know its been loong ago but its just something i noticed now

Thanks
- ddwagnz

EDIT: Ok i was initially downloading the game and me being blind as a bat, did not see the audio option, but still being able to link said soundtrack to my steam would be incredibly desirable