The pianist Miguel Ángel Lozano embarks on a personal and artistic journey with the purpose of reconstructing the life of his grandmother, Maria Forteza (1910-60), singer and pioneer of Spanish sound films.
| Directing | Marta Hierro | Director |
| Directing | Núria Abad | Director |
| Production | Núria Abad | Executive Producer |
| Production | Marta Hierro | Executive Producer |
| Production | Nacho Tejedor | Executive Producer |
| Sound | Miguel Ángel Lozano | Original Music Composer |
| Crew | Miquel Brunet | Additional Music |
| Sound | Miquel Brunet | Music Editor |
| Art | Luis Ozonas | Graphic Designer |
| Editing | Oslaya Zapata | Editor |
| Camera | Juan Carlos Azpiroz | Director of Photography |
| Writing | Marta Hierro | Writer |
| Writing | Núria Abad | Writer |
| Production | Laura Jurado | Researcher |
| Production | Marta Hierro | Researcher |
| Production | Núria Abad | Researcher |
| Editing | Jaume Alcina | Color Grading |
| Sound | Marc Farré | Sound Post Supervisor |
| Sound | Zoryana Ivaniv | Musician |
| Sound | Jorge Solano | Musician |
| Sound | Miguel Ángel Lozano | Musician |
| Sound | Joan Sebastià Mateu Martínez | Musician |
| Sound | Marc Farré | Sound Recordist |
