Originally, klezmer (plural klezmorim) referred to musical instruments, and was later extended to refer to musicians themselves. It was not until the mid-to-late 20th Century that the word was used to identify a musical genre. Early 20th Century recordings and writings most often refer to the style as "Yiddish" music, although it is also sometimes called Freilech music.
But what good fun - I'd go to a concert with this.
Klezmer is easily identifiable by its characteristic expressive melodies, reminiscent of the human voice, complete with laughing and weeping.
for me you are perfect
The Rough Guide to Klezmer Revival