During his years of musical study, Pavarotti held part-time jobs in order to sustain himself—first as an elementary school teacher and then as an insurance salesman. The first six years of study resulted in only a few recitals, all in small towns and without pay. When a nodule developed on his vocal cords, causing a “disastrous” concert in Ferrara, he decided to give up singing. Pavarotti attributed his immediate improvement to the psychological release connected with this decision. Whatever the reason, the nodule not only disappeared but, as he related in his autobiography: “Everything I had learned came together with my natural voice to make the sound I had been struggling so hard to achieve”.
Source: Wikipedia
The Far Mountains 