After singing the musical scales, and a practice song entitled "Little Sister Carrying a Doll," some 50 to 60 children are chosen from among hundreds of contestants.
選拔的標準，是要唱音階和一首童謠「妹妹背著洋娃娃」，然後從幾百位試唱者中挑出五、六十位成為進修生，即小班生。