I don't think this conversation will ever lead anywhere productive at this point. Can't tell if we're either not understanding each other or we just have different opinions
Differing opinions, definitely. I don't really see how it's anything other than that?
Also, if we're going to start whipping out dictionary definitions in a feeble attempt at proving our opinions are correct, I advocate that these names shall be changed:
sf::Texture is NOT
"the feel, appearance, or consistency of a surface or a substance."
sf::Lock is NOT
"a mechanism for keeping a door, window, lid, or container fastened, typically operated by a key."
Amongst others. Also, ConvexShape isn't always convex. Also Microsoft is neither micro, nor soft. Wait... My chrome I'm using isn't chrome?!?!
A name is a name, just that. I actually agree that sound/music aren't really the best names for these things, but I haven't seen a single suggestion here (or anywhere else) which is any better. In particular your buffered/unbuffered suggestions are just as misleading as Hapax pointed out ( I won't comment on the barrage of pedantry which followed...)
Also, RE the various comments about documentation. If programming was so easy that someone could just pick it up without reading up, We'd all have a lot more industry competition. If you jump into something without knowing what you're doing then you should fully expect to have issues (not saying this is a bad way to do things, in fact, I frequently jump into things without even attempting to learn them, but then I only hold myself responsible when things go wrong)