Q: Question: "What tells you how to operate something new?"  Context: "The organ was built by Harrison & Harrison in 1937, then with four manuals and 84 speaking stops, and was used for the first time at the coronation of King George VI. Some pipework from the previous Hill organ of 1848 was revoiced and incorporated in the new scheme. The two organ cases, designed in the late 19th century by John Loughborough Pearson, were re-instated and coloured in 1959."  Answer:
A: manuals

Q: Question: "__ is sometimes known as mood music."  Context: "These Christmas music marathons typically start during the week before Thanksgiving Day and end after Christmas Day, or sometimes extending to New Year's Day. Afterwards, the stations usually resume their normal music fare. Several stations begin the holiday format much earlier, at the beginning of November. The roots of this tradition can be traced back to the beautiful music and easy listening stations of the 1960s and 1970s."  Answer:
A: easy listening

Q: Question: "What is issue if less people farm?"  Context: "As a result of the now near-universal human reliance upon agriculture, the few contemporary hunter-gatherer cultures usually live in areas unsuitable for agricultural use."  Answer:
A: human reliance upon agriculture

Q: Question: "How might a bird who has "got the moves" might benefit?"  Context: "Birds sometimes use plumage to assess and assert social dominance, to display breeding condition in sexually selected species, or to make threatening displays, as in the sunbittern's mimicry of a large predator to ward off hawks and protect young chicks. Variation in plumage also allows for the identification of birds, particularly between species. Visual communication among birds may also involve ritualised displays, which have developed from non-signalling actions such as preening, the adjustments of feather position, pecking, or other behaviour. These displays may signal aggression or submission or may contribute to the formation of pair-bonds. The most elaborate displays occur during courtship, where "dances" are often formed from complex combinations of many possible component movements; males' breeding success may depend on the quality of such displays."  Answer:
A:
males' breeding success may depend on the quality of such displays