'Rope' Alfred Hitchcock opening analysis

Rope is a 1948 American thriller (based on the play Rope by Patrick Hamilton) directed by Alfred Hitchcock. It's edited so as to appear as a single continuous seamless shot through the use of long takes. I studied the first three minutes which opens with a mise-en scene long shot of a street scene viewed from above; classical music is played in the major key giving a false sense of calm as it fades out and is replaced by staccato minor notes typical of a thriller before focusing ominously drawn curtains.

The narrative entices the viewer on wards focusing on an everyday street  scene watched from the angle of a viewer on a roof top before focusing on a pair of curtains behind which a pair of almost comical gangsters strangle a man with a piece of "Rope'. This prop immediately makes a connection with the title . They then proceed to comically dumping the corpse of the young man in an old looking chest before leaning over it and catching their breath.                              

Alfre Hitchcock starts with an establishing shot to set the scene and contrasts the general theme of the film band ordinary street scene with happy music, viewed from a high angle the camera moves so that the frame has the corner of a roof as through through the eyes of some invisible watcher. Working with this uneasy suggestion the camera pans over the short area of the roof and focuses on a pair of drawn curtains. A half-hearted scream is heard and the shot changes to inside the room to a close up of the man being strangles. The camera zooms out to include the supposed hit-men in the shot wearing smart black tuxes who then dump the body  and the camera zooms back in to the hit men bending over the case.