streaming issues

I think that watermarking is more noticeable with piano sounds for some reason. Perhaps the piano is a difficult one to compress because each sound consists of a very high initial attack followed by a slow decay so compression has a hard time with the fading effect which is a different amount at each frequency. Most probably wouldn't notice but a very slight 'wobble' can appear with pianos. A bit like a piece of tape that has become worn or the machine's mechanics are a bit iffy, although with tape, it's there in all of the frequencies.

The issue of file sharing has been going on for so long now. Even back to not allowing mates to borrow your lp's because in effect you're sharing your files and they could copy onto reel to reel!! Funnily enough, the old cheaper reel to reel machines could also give a warble if they weren't set up right or if the tape stretched somewhere. I used to be very careful with them and only used certain brands for their sounds on (a then) quite expensive Sony reel to reel that spun at a daft speed. I had to put it into a cupboard because of the physical noise from it.

However, the warble effect from watermarking is way less than what I got from rough old tapes.