In this project I have examined how I can use different ways to compose for a bigger ensemble and for my own instrument, guitar, as a part of it. As a musical form for the composing I chose to write music based on my musical preferences and influences from the film music genre. For the project I wrote five different pieces which I performed together with an ensemble which included seventeen other musicians in KMH:s concert hall “Kungasalen” on the 6th of mars 2019. The theses will give you a perspective on how I wrote the compositions and what tools I used, theoretically and emotionally. In this project I also go deeper into how I can evolve as a bandleader and how thorough I am with how I handle such a big ensemble, both socially and musically, and how I should manage in the future in similar situations to achieve the best possible result.