Complex sentence: However, Hammond's instincts proved to be correct and these artists went on to sell hundreds of millions of records.A&R people have radically changed the direction of popular musical tastes and introduced large numbers of people to new sounds.
Split into simpler sentences: However, Hammond's instincts proved to be correct and these artists went on to sell hundreds of millions of records. In cases like these, A&R people have radically changed the direction of popular musical tastes and introduced large numbers of people to new sounds.