ME:

Did Debussy use equal temperament?

CHATGPT:

Claude Debussy, the French composer and pianist, lived and worked during a time when equal temperament was the most commonly used tuning system in Western classical music. It is likely that Debussy used equal temperament in his compositions, as most pianos of his time were tuned to this system.

However, Debussy was also known for his experimentation with non-traditional harmonies and novel approaches to tonality, and it's possible that he may have used alternative tuning systems at times for specific musical effects. This is a topic of ongoing debate among musicologists, and there is no definitive answer.