Why does the Suzuki Method work?
An early start
The best time for children to begin musical training is between the ages of four and eight when the brain is growing and absorbs the most.
Parental participation
Parents are attracted to the Suzuki Method because they value quality time with their children and actively seek opportunities to spend time teaching and nurturing their little ones in meaningful ways. The success of the method is due to the parents, the environment they create in the home and their dedication to continuing the role of teacher at home by practicing with the child, playing the recordings and patiently encouraging the child each day.
"Mother-tongue approach"
In the Suzuki Method, children learn to play by imitating the recorded pieces which they listen to every day. Suzuki calls this plan the "mother-tongue approach" since it follows the procedure by which children learn to speak their native language. Note reading is postponed until rudimentary technical mastery of the instrument is achieved, just as the very same child learns to speak his native language before he reads.
More than music
Suzuki trained students develop musical sensitivity, memory, discipline, endurance, coordination and self-confidence as well as a life-long appreciation of classical music. Suzuki families find their lives enriched in many ways, musically and otherwise, due to the establishment of a positive environment full of encouragement and praise. While lovingly correcting inaccuracies, Suzuki teachers and parents always urge children to strive for beautiful sound but are more concerned with their total self-development than with turning out expert musical performers.
Mastery at every level

A slow, careful beginning is essential in any method; each step must be mastered before moving on to the next. Every step, no matter how small, is recognized as an achievement. Success builds success. Because parents acquire a working knowledge of the instrument and its beginning technique before the child starts lessons, they understand from first hand experience that what may appear on the surface to be one activity is actually a series of smaller, complex steps.

Sources: Nurtured by Love, Dr. Shinichi Suzuki Understanding the Suzuki Method, Lorraine Fink. Why does the Suzuki Method Work?, Barbara Barber, Delaine Fedson