There are limits to how much sound a cello can make. That's part of the framing of acoustical instruments. Finding what those limits might be, and then trying to suggest perhaps even the illusion of going beyond is part of that kind of effort.
Yo-Yo MaOne of the marks of a great teacher lies not only in an ability to impart knowledge but also in knowing when to encourage a student to go off on his own.
Yo-Yo MaAs you begin to realize that every different type of music, everybody's individual music, has its own rhythm, life, language and heritage, you realize how life changes, and you learn how to be more open and adaptive to what is around us.
Yo-Yo Ma