For music, the geometry is the same and direct-radiators are recommended. Bipole/dipole surround speakers are a hold-over from the DVD/cinema/Dolby recommendations.
Despite Ears' cynical comment, music is almost always appreciated in an ambient situation. It simply depends on whether you can abide the synthetic ambience of a good listening room or prefer the real ambience of the performance space. Gimmicks referred to are beneath comment.
I was not speaking of music written for antiphonal or other spatial effects to be 'gimmicks' but was referring, specifically, to the previously-mentioned random placement of guitars and drums in the rear.
Have you heard the Telarc Berlioz Requiem? Not a gimmick.
I fully understand you, Ears, and I agree that such discs are annoying and unsatisfying. However, there are competent MCH discs. Perhaps my music preferences are different from yours but I find few gimmicky ones.
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