Meeropol used the pseudonym '' Lewis Allan '' for the poem , which was set to music and performed at teachers ' union meetings .
The poem had been set to music and was performed at teachers ' union meetings .
The poem had been set to music and was performed at teachers ' union meetings .
简化: Meeropol used the pseudonym '' Lewis Allan '' for the poem , which was set to music and performed at teachers ' union meetings . 输出: