Suzuki has a set repertoire of seven books. The songs are a means to an end, tools to teach skills. Each song is tailored to teach specific skills. Therefore, progress is not judged by the number of songs the student can play, but by the quality of their playing. A high focus on technique and tone is applied from the very beginning so that the students can carry their sense of musicality with them as they go.
Learn about performing here.
Learn why repetition is essential here.