Your recording should sound like the concert, and your concert should sound GREAT!
kludge: /klooj/ * - noun
An ill-assorted collection of parts assembled to fulfill a particular purpose.
au·di·o
/ôdē,ō/ - noun
sound, especially when recorded, transmitted, or reproduced.

(definitions from Wikipedia )
About our Microphones
A minimalist field kit
About other Equipment
Analogue
DIY Kits
Festivals
Salvage Work

* Why be Kludge?
Scott Dorsey aquired the nickname as a child, for his creative and jackleg solutions to equipment problems.
 
Nowadays: "This is not a problem."

Mics shown: Josephson Engineering Series 6
ORTF configuration.