It is wise to take time and effort to organize the experiment properly to ensure that the right type of data, and enough of it, is available to answer the questions of interest as clearly and efficiently as possible. An experiment deliberately imposes a treatment on a group of objects or subjects in the interest of observing the response. A control group is used as a baseline measure. The control group is identical to all other items or subjects that you are examining with the exception that it does not receive the treatment or the experimental manipulation that the treatment group receives. An experiment that yields clear and systematic differences among the results of the test takers is biased. Treatment vs Control by Deepak Sharma uses extended tracks, story-telling techno to elicit a unique response through direct brute force and indirect dramatic soundscapes.