I know this was addressed to Tones but
titian said:
how often do you go to live concerts? And how often are you sitting in the best rows (5-8)?
Quite often. During rehearsals I always try to spend some time sitting in the auditorium, moving to different seats to hear the effect. I usually find that the optimum for larger auditoriums (eg. Bridgewater Hall) is probably row 10-15. Any further forward than that and you're below the stage, and the sound balance and imaging is below optimum for the auditorium.
Let's be honest, the best positioning (to my ears) is somewhere about row 0 - ie a couple of metres behind the conductor. Then it nearly sounds like a hifi recording
titian said:
The positioning of every instrument is in classical music very important because it gives at last that overall effect that you so much like. Otherwise why would conductors take care where the instrument groups are?
I believe the prime reasons for performer location are volume balance and ensemble.
Volume balance - put simply, the violins are quieter and therefore are put closer to the conductor & audience. Soloists stand at the front of the stage. The brass is louder and therefore put further away. For an omnidirectional sound source, the volume level drops off with 1/(distance^3). I know a trumpet in a concert hall is not omnidirectional - it's got a horn, which is inherently directional and there are reflected sounds coming from all directions - but the principle's the same; put them further back and they won't be so loud
Ensemble - different groups of performers will be expected to produce sounds at the same time and as part of one coherent performance. Put them closer together and it becomes (much) easier for them to adjust to each other for volume, timing and phrasing.
Imaging - having said all that, I believe that Imaging does help the brain make more sense of the whole. The more readily you are able to analyse the musical construction, should you so wish, the better able you are to recombine the parts into a musical whole. Whilst you can do this in mono, there's no doubt that spacial clues make the analysis easier.
When you look at a beautiful/impressive view, it is the view as a whole that has the impact... or the impressive part of the view that has the impact. You can then get further pleasure by looking at the details in the view and appreciating their part in the make-up of the whole - eg. colours, lighting, variations in texture, perspective/relative distance. The view on a hazy day (lack of detail/imaging) can have as much impact as that on a bright clear day - imaging is not essential, but can assist in the analysis and enjoyment.
titian said:
Mr.C:
the fact that in live concerts you are not concerned of imaging ("Wow, that imaging was awesome") is IMO because it appears in a natural way. You are not even aware of it because it is normal: yes the instruments are there, I see them, what's wrong?
Agreed. Your brain knows that it won't hear transients and detail from (say) a soloist or the woodwind as if they were 1m away, because it's plainly obvious that they are much much further than 1m away.
Furthermore, your brain also (mostly) completely filters out the coughs and rustles from your neighbours in the audience, even though they are at a very high level relative to the signal.
Your brain has some very highly developed filtering and adaptation mechanisms to get the information it most wants/needs under difficult circumstances.
