都可以用“good”形容

两者都有唱歌的意思,但是singing是动名词,表示动作,；

如:

she is singing.他在唱歌。本剧中是动名词

Her singing is good.她的歌声很好。 

Driving to the suburbs, fishing in a lake, bathing in the sunlight, enjoying the singing birds, fragrant flowers and waving willows make for a perfect weekend in spring. 驱车到郊外，在湖边垂钓，沐浴阳光，欣赏鸟鸣、花香、垂柳，这是一个完美的春日周末。

 song是名词,表示表示人、事物、地点、团体或抽象概念的名称

Do you hear the people singing the song of angry manit is a music of the people who will not be slaved again？你听到人们在唱《愤怒的曼尼特之歌》吗？这是一首不会再被奴役的人民的音乐