While many of Europe's composers managed to escape the grip of Nazism, others were silenced too early.
A revival of works by composers lost to the concentration camps became somewhat of a personal project for the grandson of Holocaust survivors, Nick Deutsch,.
Some years ago, Mr Deutsch, who is now the Artistic Director of the Australian National Academy of Music, was asked to play at a concert in Leipzig for survivors of the Terezin Concentration Camp.
It was during this time he uncovered an octet by composer Gideon Klein.
"As a musician, as a performer, we are always looking for new inspirations and new repertoire and this is a repertoire I came across some years ago and found fascinating," he said.
Most of the composers featured in the concert died in Terezin, near Prague.
One of the works by Gideon Klein was written before he was sent to the camp and then found in unfinished condition.
"They should actually be in the normal repertoire, like Schulhoff or Haas."
"In a last desperate act to try and save some of his works they were put in a suitcase and given to a family relative, Mr Deutsch said.
"It was probably placed in an attic and forgotten for 50 years, and it was only in 1990 when it was discovered."
The music offers somewhat of an insight into the life and times in which they were written, according to ANAM oboist Stephanie Dixon.
"There was so much turmoil going on around this time. But even before the war actually started it's interesting thinking about what was in the minds of the composers and what sort of emotions they would have been experiencing," she said.
"That's coming through their compositions and their music."
ANAM Artistic Director Nick Deutsch said he hears a lot of optimism in some of the pieces.
"They decided to continue with their lives, continue with their passion which was composing and making music and that is definitely audible in these works."
Organisers said the October 20 concert, titled 'A Voice for the Silenced', will focus on the works as musical masterpieces of the 20th century.
International musicians will also feature in the concert and support the cause, including Silvia Careddu who has recently been appointed principal flute for the Vienna Philharmonic.
"They should actually be in the normal repertoire, like Schulhoff or Haas. The names are not so well known, there is another one, Smit," she said.
"There are so many that nobody knows. They are like forgotten completely.
German born Irmgard Hanner is a Terezin Camp survivor.
"At least it gives them the recognition that they deserved," she said.
"I think it gives hope. That music gave hope because the whole story about it is that evil should not triumph over good. I think that's what it portrays."
