Moments before his comeback performance, a concert pianist who suffers from stage fright discovers a note written on his music sheet.
Unfortunately the movie Grand Piano is not yet available on HBO Max.
| Sound | Víctor Reyes | Original Music Composer |
| Directing | Eugenio Mira | Director |
| Writing | Damien Chazelle | Writer |
| Production | Adrián Guerra | Producer |
| Editing | José Luis Romeu | Editor |
| Camera | Unax Mendía | Director of Photography |
| Production | Rodrigo Cortés | Producer |
| Art | Maite Sánchez | Set Decoration |
| Sound | Kyle D. Krajewski | ADR Recordist |
| Production | Rosa Pérez | Producer |
| Production | Lisa Wilson | Executive Producer |
| Costume & Make-Up | Ana López-Puigcerver | Makeup Designer |
| Sound | Manuel Carrión | Foley Artist |
| Production | Nicolás Tapia | Line Producer |
| Costume & Make-Up | Alvaro Sanchez | Makeup Artist |
| Production | Mikel Lejarza | Executive Producer |
| Production | Joan Philo | Casting |
| Costume & Make-Up | Leire Loperena | Makeup Artist |
| Costume & Make-Up | Patricia Monné | Costume Design |
| Costume & Make-Up | Natalia Montoya | Makeup Artist |
| Production | Alex Corven | Line Producer |
| Production | Myles Nestel | Executive Producer |
| Sound | James Muñoz | Sound Designer |
| Production | Juan Carlos Caro | Producer |
| Production | Miki Nadal | Associate Producer |
| Art | Javier Alvariño | Production Design |
| Sound | Francisco Elías Toro Ramírez | Sound Editor |
| Production | Christian Baha | Associate Producer |
| Production | Mercedes Gamero | Executive Producer |
| Production | Núria Valls | Executive Producer |
| Art | Jaime Anduiza | Art Direction |
| Sound | Michael Miller | ADR Mixer |
| Editing | Rodrigo Cortés | Editor |
| Production | Ricardo García Arrojo | Producer |
| Costume & Make-Up | Txell Arfelis | Makeup Artist |
| Production | Ana Isabel Velásquez | Casting |
| Costume & Make-Up | Laura Bruy | Makeup Artist |
| Sound | Albert Manera | Sound Mixer |
| Sound | Mitch Dorf | ADR Mixer |
| Production | José Torrescusa | Producer |
| Directing | Rodrigo Cortés | Second Unit Director |
| Production | Axel Kuschevatzky | Delegated Producer |
