Music field has become too big, and it is very challenging and also very unique There are some guidelines if somebody is trying to make it as career out of their love of music. Talent is a obvious ingredients but the descriptions of talent is hard it may be the combination of writing , creating ,presentation skill in unique way.
Main point is how much focused and how much practice we do with our intellect ,emotion and faith on our talent .you have to have patience. we should not think too much about the industries rejection. Everybody has their room in this field. not everybody born with high degree talent and musical sense.
In this field relationship plays a big roll .whom do you know and how they are related to you how you can involve people to your journey. Try to make some experimental project with your fellow musicians. now a days music business has become so dynamic you can add value to the business industries to increase and expand your music success. create multi dimensional career. know your strengths and weakness trust on your knowledge. work ethic also play the big roll in the success and recently social media is playing leading roll. Boost your fan connection and friends.