I do know what I am talking about.

Simply twisting a cable doesn't put induced fields on one conductor out of phase with the other. If that were true, than the whole point of balanced cables would be… well, backwards. If signal+ carries the original signal and signal- carries the inverse phase, then, according to you, noise would be induced on signal+ and then on signal- out of phase. When the receiver inverts signal- and sums both, the noise would be a valid signal because it would be in phase again.

Music enters signal+ in phase and signal- out of phase (now called differential voltage). Noise enters both conductors in phase (called common mode voltage), the receiver inverts one signal (signal-), the music is now back in phase on both conductors so is valid when they are summed, the noise on signal + is then out of phase with noise on signal- and is cancelled when the signals are summed.
The real reason why twisting signal wires is effective is because it reduces magnetic field coupling (works for both balanced and unbalanced) provided that the signal flow on both conductors is equal and opposite, and that the length of twist is smaller than necessary (1/20th of the smallest wavelength) NOT because noise enters the conductors out of phase.

Also, pseudo-differential (I'm assuming that's what you meant) does still have a reference ground, just not in the cable, it's tied through a small value resistor from signal- to the equipments' ground, and it's only effective at DC voltage rejection, not AC.

The majority of this has nothing to do with the original post, but when you say I don't know what I'm talking about....

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