His performance there infused the museum with much welcomed income. Shlomo Artzi is indeed the son of holocaust survivors, and it affected him greatly, and his songs. It is very relevant to the story, in that he too was happy and willing to infuse the museum with income. You must understand that he could have done the show anywhere else, but as the son of holocaust survivors he chose to do it there. He doesn't get much chance to do shows in places other than Caesaria and Zappa, not to mention places that have to do withthe holocaust. I'm sure everyone involved welcomed the opportunity!