[tavavex]

Yeah, it's both an earlier development, and it also doesn't really apply fully. In almost all modern aircraft, aural alerts are only used for very dangerous situations that require immediate pilot action. However, there are still a lot of "abstract" sounds used, either where it occurs often (like autopilot disconnect) or where spelling it out isn't needed (like a generic warning or caution tone to bring attention to the display that describes the error)