What is the relationship between music preferences and personality?

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The aim of this research was to examine the relationship between music preferences of different mode and tempo and personality traits. The survey included 323 students who had to fill out the following tests: questionnaire of music preferences, scale of optimism and pessimism and International Personality Item Pool for measuring Big Five personality traits.

1) does she alvays come to class late? she doesn't alvays come to class late.

2) do you understand everything he says? i don't  understand everything he says.

3)was the door of the office open? the door of the office wasn't open?

4) were there few passengers in the compartment?   there weren't few passengers in the compartment.

5)will the lesson be over at 12 o'clock? the lesson won't be over at 12 o'clock

6) shall we take the children to the park?   we shan't take the children to the park.