Unlike a soloist, who has total command over tempo, phrasing, and interpretation, a collaborative pianist must possess a "musical chameleon" quality. Being a partner means:
Impact on Performance and Teaching
Why are musicians specifically hunting for a PDF version of "The Complete Collaborator" rather than a hard copy?
For decades, the person at the piano was called the "accompanist." They were expected to be seen and not heard, following the soloist like a shadow.