During the Granada television series Jeremy Paul and Jeremy Brett collaborated on a Holmes play in which Brett starred alongside Edward Hardwicke as Dr. Watson. The play's central theme is the friendship between Holmes and Watson. I found the audio of a 1989 performance, at least the first 30 minutes of it, on YouTube. Enjoy... Below Complete audio from The Jeremy Brett Archive

Complete Play Audio

Act 1

Act 2

~ Rebecca Wilde, The Jeremy Brett Archive 2016