Yes! We've promoted songs as old as having released 20 years ago that have done very well.
Our experience has been that curators are not looking for current songs or even 'great" songs, but, rather, songs that they like (and/or they think their listeners will like).
However, the best way to find out if we are a good fit to serve youur older songs is for you to submit them to us for review. From there, we'll provide recommendations via email.