scholar Philip J. Skerry counted only 60 separate shots, with a table breaking down the middle 34 by type, camera position, angle, movement, focus, POV, and subject. Absent an alternative tabulation, Richard Schickel and Frank Capra, in their 2001 book The Men Who Made the Movies, concluded the most reasonable calculation was 60. Many are close-ups, including extreme close-ups, except for medium shots in the shower directly before and directly after the murder. The combination of the close shots with their short duration makes the sequence feel more subjective than if the images were presented alone or in a wider angle, an example of the technique Hitchcock described as "transferring the menace from the screen into the mind of the audience". To capture the straight-on shot of the shower head, the camera had to be equipped with a long lens. The inner holes on the shower head were blocked and the camera placed a sufficient distance away so that the water, while appearing to be aimed directly at the lens, actually went around and past it. The soundtrack of screeching violins, violas, and cellos was an original all-strings piece by composer Bernard Herrmann titled "The Murder". Hitchcock originally intended to have no music for the sequence (and all motel scenes), but Herrmann insisted he try his composition. Afterward, Hitchcock agreed it vastly intensified the scene, and nearly doubled Herrmann's salary. The blood in the scene was Hershey's chocolate syrup, which shows up better on black-and-white film, and has more realistic density than stage blood. The sound of the knife entering flesh was created by plunging a knife into a casaba melon. There are varying accounts whether Leigh was in the shower the entire time or a body double was used for some parts of the murder sequence and its aftermath. In an interview with Roger Ebert and, in the book by Stephen Rebello, Alfred Hitchcock and the Making of Psycho, Leigh stated she appeared in the scene the entire time and Hitchcock used a stand-in only for the sequence in which Norman wraps Marion's body in a shower curtain and places it in the trunk of her car. The 2010 book The Girl in Alfred Hitchcock's Shower by Robert Graysmith and the documentary 78/52: Hitchcock's Shower Scene contradicts this, identifying Marli Renfro as Leigh's body double for some of the shower scene's shots. Graysmith also stated that Hitchcock later acknowledged