Compilation of images of the amateur recordings of Madronita Andreu, Catalan intellectual of the nineteenth century, daughter of Dr. Andreu, famous for its pills and cough syrup.
| Writing | Arantxa Aguirre | Writer |
| Writing | Javier Rioyo | Writer |
| Production | José Luis López-Linares | Producer |
| Directing | José Luis López-Linares | Director |
| Writing | Mauricio Villavecchia | Writer |
| Production | José María de Orbe | Producer |
| Editing | Pablo Blanco Guzmán | Editor |
| Sound | Juan Carlos Cid Torrejón | Sound Mixer |
| Sound | Mauricio Villavecchia | Original Music Composer |
| Production | Jaime Rosales | Associate Producer |
| Production | Javier Rioyo | Producer |
| Editing | Ana Serret | Editor |
| Editing | Fidel Collados | Editor |
| Editing | Ximo Michavila | Digital Colorist |
| Camera | Yago Muñiz | Assistant Camera |
| Camera | Teo Delgado | Director of Photography |
