Recordings in many cases are owned for a long period of time and the owner has been familiar with the owned recording being used on a wide range of equipment within the owned audio system and also used on audio systems belonging to others.
It is this type of a familiarity with a recording that creates a confidence in an individual when assessing a performance from a Audio Device added to the owned system, or assessing a selection of Audio Devices assembled to produce an alternate system.
Usually a few Albums which are the preferred in the owned collection, are the 'go to' for the Tracks selected for being used. To fulfil the individual with the interest needs, for getting the feel for the overall qualities for a System in relation to the perceived qualities of the replay for the recordings that have been selected.
The idea of a pre-ordained Playlist generically used at the time of Demo's of Audio Equipment by a wide selection of individuals is new to myself.