Some music elements such as tempo and timbre, as well as the personal variables such as gender, personality, and experience of musical education also play important roles in preference to music.

某些音乐特征（如速度、音色）和某些个体差异变量（如性别、人格、音乐学习经验）都会对音乐喜好产生影响。

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Gender and age are generally linked with other situational and personal variables, making it difficult to determine specific sources of variation.

性别和年龄与其它的环境和个人变量普遍联系，以致很难测定变动的真正来源。

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Depending on their personal views, people will weigh these variables differently.

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Americans believe that the individual can influence the future by personal effort, but since there are too many variables in the distant future, we favor a short-term view.

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The company's algorithm draws on information from more than 100 databases and social networks, looking at an array of variables such as users' locations and the number of personal connections.

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