Vibrant and charming, the Japanese-American duo first introduced themselves to the students, and then extended a welcome for one student to come play his piece for them and the class.
The audience listened on, as one Mack sister followed the music and the other watched the boy’s hands and body closely.
Once the boy finished, both sisters complimented his understanding of emotion and the "rhapsody."
They then made constructive criticisms, and the audience watched as the student improved upon his piece before everyone’s eyes.
Then they called up the second student to play his piece; and the process was repeated with entirely different critiques and improved skill.