What instrument is the grandad of the orchestra?

The grandad of the orchestra is often considered to be the double bass. This instrument provides the foundational bass lines and harmonies that support the entire orchestra. Its deep, resonant tones contribute to the richness of the orchestral sound, making it a crucial element in orchestral music. Additionally, the double bass has historical roots that connect it to earlier string instruments, reinforcing its status as a venerable member of the ensemble.