Grade for Class 5 Assignment

Good job, Terry.

#### Exercise 1

- No crashes, works as expected. 4 points
- Not necessary to assign `music_list` (aka `songs`) to an empty `[]`
- Variable names should identify their content and their not type
- Prefer immutable methods over their mutable counter part (i.e. `shuffle` vs `shuffle!`)

#### Exercise 2

- No crashes, works as expected. 4 points
- Cleaned up the code bit. Compare and analyze

#### Exercise 3

- No crashes, works as expected. 4 points
- Spaces between operators and punctuation really help with readability :eyes: 
- Cleaned up the code bit. Compare and analyze

#### Total

`4 + 4 + 4 = 12` :star2: