Music is the key to opening the door to stress-free and fast learning, and is a positive and effective way to improve brain work efficiency and memory. This revolutionary discovery was made by scientists from the former Soviet Union. They found that certain music written by composers in the 17th or 18th century had strong effects on the brain and memory. These musics are created according to special formats handed down from ancient music. It is the Andante music of 55 to 65 beats per minute in the Baroque concerto that doubles the learning effect. Baroque composers usually used string instruments, violins, mandolins, guitars, and harpsichords to create this kind of slow, comfortable and quiet music, with natural, high-frequency, and harmonious sounds.