Chrono Trigger is a SNES game with short samples. Normally that would result in significant quality degradation, but one interesting side effect is that its short looped low piano sample (found in songs like Lavos's Theme[1]) has no inharmonicity. When the attack ends and the sample loops, it almost sounds like the harmonics go a bit flat.

[1]: https://fi.zophar.net/soundfiles/nintendo-snes-spc/chrono-tr...