What does LA rock legend Stan Ridgway share in common with Frank Sinatra? What's the common thread between the soundtracks of The Wizard of Oz, Pink Flamingos, and Superman: The Movie? How does the Now That's What I Call Music series coincide with R.E.M., Lynyrd Skynyrd, or Loretta Lynn?

The answer is, they've all had records mastered by Doug Schwartz at Mulholland Music. A truly complete discography may never be accurately compiled, but our friends at Discogs have made go of it:
https://www.discogs.com/artist/438260-Doug-Schwartz
Or, check out the All Music Guide:
http://www.allmusic.com/artist/doug-schwartz-p123089/credits/date-asc/

What, no credit as soloist with Claudine Longet? Lost Horizon? No mention of the film and television work? It's a tough town...