Music making, especially for choir members, is an active mental operation. Thus, how to deal with the “emotions” of the ensemble members will be an intriguing topic for a conductor. In this book, the author will discuss two different issues that are both related to psychological impacts. Doubtlessly, a conductor with a good personality is easier for choir members to work with. The book offers many successful examples of emotional control, and how it created a good atmosphere between the conductor and the ensembles. Next issue is regarding to rehearsal techniques. It is about how to manage the emotions of the choir to improve music quality during rehearsals. In this book, the author would also like to share many techniques for efficient emotional managing over rehearsals.