Calculate the Total Addressable Market (TAM), Served Available Market (SAM) and Serviceable & Obtainable Market (SOM) of a next-generation music platform that allows musicians to buy/sell their contents, connect and collaborate with each other.

Hi there, I'm Raf Cabana, co-founder and creative director of Amula. We are building a next-generation eCommerce and social network platform that allows artists, music producers and songwriters worldwide to buy & sell their music contents, connect and collaborate with each other. Amula's mission is to revolutionize interactions & accelerate collaborations between musicians around the world. We are creating the pitch deck for our company and looking for an expert to help us to calculate the Total Addressable Market (TAM), Served Available Market (SAM) and Serviceable & Obtainable Market (SOM). The pitch deck will be presented to investors. Kind regards, Raf