This is from my grammar exercise book. I'd like to ask why only the definite article, the, should be used here. The book says that when the + instrument is chosen as a combination, it refers to the entire class of instrument. From this viewpoint, the topic sentence sounds to me like the doer wants to learn all kinds of saxophones. Is my interpretation correct? If so, it looks weird because it would be almost impossible to do so. I think that it is more natural and logical to say, "I would love to learn a saxophone(I mean a kind of instrument)." Do you have any ideas?I would love to learn the saxophone.