Czech fields and forests are a musical genre. "Czech Fields and Forests" is the fourth movement in My Motherland and was once quoted in the famous movie "Walter Defends Sarajevo". Bedouiz Smetana, the author of "Czech Fields and Forests", is a famous Czech composer of national music. He began to learn violin at the age of four, then piano, and began composing at the age of eight. During his exile abroad, he still thought of his motherland all the time. After returning to China, he took leading the cause of Czech national music as his own responsibility and persisted in musical social activities. He organized and built national theaters, founded artists' associations, held popular concerts, served as conductors, published music reviews, etc., and never stopped creating. He was very important to the Czech nation. Opera played a pioneering role.