How do I link discography with gigs section with "clickable" songs?

I have a major fan website that’s been online for the last 17 years for a huge rock band. I am in the midst of redesigning the site.

So I am stuck on how to create clickable songs or tracks in my gigs section (contained in setlists) to their respective albums or records in the discography section. In the discography section, on each “track” or song page, I want the option to display where the song was performed (which venue), when (date), how many times it was performed live and have a dropdown list to every available gig this song was performed. It could then link back to the gigs section this way.

I am using a premium theme (Audiotheme) but their support section does not cover deeply customized questions for their basic technical support. I am willing to share my premium theme with anyone who is willing to help me. I don’t have the funds to pay thousands of dollars to a company that specializes in theme customization requests. I have been stuck on how to cross-link/integrate my 2 sections (gigs and discography) and I am desperate for assistance or at least a starting point on how to go about this. I would be grateful if anyone could point me in the right direction. Thank you.