Or,they can represent someone less well known but historically important.

VOA: special.2010.01.27

I want to play this one with the piano a little bit and I ask you the name of the composer of this piece-- it's a bit less well known but maybe not-- what it's called and when in the history of music it was written.

我会用钢琴演奏一小段,然后我会问它的作曲是谁,这曲子有点不太知名,也说不准,它叫什么,在音乐史上是什么时期创作出来的

耶鲁公开课 - 聆听音乐课程节选

He had a second book out, less well-known, called Lila .

还写过另一本书，没那么知名，叫《寻找莱拉》

哈佛公开课 - 幸福课课程节选

They also exhibited many less well-known works.

VOA: special.2009.08.09