The producer is the single most important person involved in a record, besides the artist of course.
The producer is the enigmatic wizard who will turn amateurs with their crappy songs into rock stars.
This means that the producer is the key to success when you – the artist – will be (re)writing, recording, and mixing your songs in the studio or at home.
Many of the world's greatest songs and albums have been the result of successful collaborations between great artists and great producers.
One of the major reasons why most amateur artists fail is that they don't have a good producer, or that they have no producer at all.