She is musically inclined and she popped on a record I had recently gifted her of one of her favorite bands. She was in marching band her entire high school experience as well. She always finds stuff like this. She recognizes when it’s a different recording or not the “proper version” from her childhood. It all sounds fine to me! As a visual person, the finer understandings of music might as well be magic to me.
If it’s a song you know well it’s certainly possible. It just sounds wrong. I once pegged a friends turntable as well sharp (and it was) in just a few seconds.
When US (NTSC) shows are aired in Europe (PAL), the framerate difference necessitates a small speed-up. It's barely noticeable, except when music is playing, at which point it is very, very noticeable. Yes, it's a little higher pitched, but it just feels wrong and is immediately noticeable. I think it's about 3% speed up, which is exactly what's being described here.
They may have been referring to film (24 FPS) or its broadcast equivalent (23.976 FPS) being shifted to PAL, which is quite a bit smaller of a jump.
NTSC —> PAL can either be annoying, or difficult to manage without artifacts. If the NTSC source is telecined from a 23.976 source, you can invert that process to get the original back, and then deal with the minor time shift to PAL. If it’s pure NTSC, there’s a lot of filtering to be done to get an acceptable result. At least, last I played with it.
I believe with music it's much easier to notice that something is sped up. I'm watching videos, listening to podcasts all the time sped up, now don't even notice it, but with music, even a 10% speed up is extremely noticeable.