## Post_Production_Sound_Mixers

id | name | years_of_experience
--- | --- | ---
1 | John Doe | 10
2 | Jane Smith | 8
3 | Alice Johnson | 7
4 | Bob Brown | 6
5 | Tom Green | 9

## Recording_Environments

id | environment_name
--- | ---
1 | Isolation Booths
2 | Live Studio
3 | Outdoor Location
4 | Foley Stage
5 | Dubbing Theatre

## FilmProjects

id | title | release_date
--- | --- | ---
1 | Film A | 2023-01-01
2 | Film B | 2023-02-01
3 | Film C | 2023-03-01
4 | Film D | 2023-04-01
5 | Film E | 2023-05-01

## Films_with_Sound_Mixing

film_id | mixer_id
--- | ---
(→ FilmProjects.id) | (→ Post_Production_Sound_Mixers.id)
1 | 1
2 | 2
3 | 3
4 | 4
5 | 5

## Sound_Mixer_Environment_History

sound_mixer_id | environment_id | start_year | end_year
--- | --- | --- | ---
(→ Post_Production_Sound_Mixers.id) | (→ Recording_Environments.id) |  |
1 | 1 | 2013 | 2017
1 | 2 | 2017 | 2020
2 | 2 | 2015 | 2019
2 | 3 | 2019 | 2022
3 | 3 | 2014 | 2018
2 | 1 | 2015 | 2019
3 | 1 | 2014 | 2018
4 | 1 | None | None
5 | 1 | None | None