The Fox Studio Lot in Los Angeles, California, is significant to Sherlock Holmes 2009 because it is the place where the sound team rented an underground parking garage to experiment with a broken piano and create unique sounds for the musical scenes in the film. Hans himself pushed the piano down a set of stairs in this exact parking garage to detune the piano. I found this information from an independent film music review website/entertainment blog, Movie Music UK. Johnathan Braxton is an author representing this website, one that is low barriers to entry because anyone can publish a film score review without needing approval for their opinions or analysis. Mapping this location on COVE adds a grassroots layer to a story usually told top-down because it shares a small detail of the sound production process that might not be widely known to fellow classmates.
Link to Article and Website