You are basically trying to say that by natural human tendencies, the barter and gifting system is the ideal path we would naturally pass to exchange value.
You're so on point with that because looking at it from your perspective, there is a little bit of more nobility when you give gift rather than give out cash in exchange for something. Where as, it is even more noble when you give for nothing else in return, no wonder the musician wanted to just appreciate u at all cost.
I have been thinking of a cryprocurrency that could be built around the premise of gifting, so happy someone thinks the same way. You sort of validated by idea with this post. Kudos @donkeypong