The term 'Piano Teacher's Demand' can be summarized as a job that requires patience and dedication. The job entails teaching students how to play the piano, which requires the teacher to have a thorough knowledge of music theory and technique. Additionally, the teacher must be able to motivate their students and help them develop their skills. The term can also be summarized as 'AGAIN', which implies that the teacher must be able to repeat instructions and exercises until the student has mastered them.