musical terms

I need help with the translation into French of some technical terms about string instruments. Could anyone tell me what "bouts and purfles" are (in French !)in violas and cellos, and what the exact term for "waisted instruments" is ? Many thanks !

Bonjour marietrad, personnellement j'ignore la signification de ces termes, mais je vais essayer de trouver. Je connais un luthier qui pourra peut-être me renseigner.

And maybe here some musicians could help us as well

Hi Salim, please could you ask Negar whether she knows about these specialized terms "bouts" and "purfles"? and also what does "waisted instruments" mean? Thanks by advance!

CC: salimworld

Sure I will