Questions about making sound

Today I'm wondering why I'm looking at an "instrument" that makes music/noise that is not recordable or amplifiable (in other words, I'd make the noise for myself-the music/noise is not repayable nor commercially viable and, unless I play for an audience as well as my own ears, is heard )…"why oh why would you want to do this? " you ask-my answer is that it's the same as making art without a buying/paying audience…the old, "if a tree falls in the forest…" routine. Does this weaken the personal experience? If there is an audience, does it weaken that audience's experience?

What about photographs? Do we make/take them to validate our experiences? To keep a souvenir or a proof of our experience? Is my experience any lesser if I do not have a camera? Is it possibly a richer experience? If i do not see your photograph does it lessen the sharing of your experience?
So here's the difference: the art making that i do creates a product. The noise/music making that i do creates a product that is ephemeral/fleeting and stuck in time. This is also true for most of the conversing I do with others. Not so true with the computer, which, I've been promised, keeps an "eternal" record of what actions or typed verbiage have been created on it.
Is this last bit for purposes of liability? A wholesale human ego trip? or just the side effect of the machines with which we are so thoroughly inextricably engaged?

Art gets made because I make art- the same is true for the noise and speech I make, which generally is not recorded. Unless we are having a VERY bad day, I do not question this-"it's what I do…" Maybe the art question has fewer issues because there is always a product (this being true for the type of art that i make)