Micro variations in analog recording

Is this another reason for analog recording sounding so nice?


There are micro variations at various angular velocities corresponding to different frequencies according to the many diameters of pulleys, pitch roller, shafts etc.


Non harmonic frequencies make a pattern that almost never repeats itself. Like planets rotating at different angular velocity therefore frequency.


These micro variations caress the basilar membrane.


In a similar way a Leslie speaker does due to the Doppler effect causing frequency variation.


But in a more subtle and almost random way.


Possibly equipment mocrovariations combined with musician microvariations make a Cartesian product of mocrovariations that never repeat. An example is the accordion and general sound on Speak Softly - Nino Rota, Ray Connif version.


There we have microvariations by the accordion player for example. The air is modulated. The distance of the accordion from the mic is modulated (phase modulation). We have countless reflections from the church, Columbia Studio at 30th street New York. The sound is sent to the store room acting as echo chamber (see Frank Laico interview on YouTube by AES). The return from the chamber is passed through an analog recorder in real time. Then it is combined with the live signal.


Tremendous number of microvariations added or rather multiplied together.


Is this another reason why these recordings can be listened to so many times and the interest of our brain is still there?


How can we create nice microvariations on 2017 without motors running on tape recorders?


One way could be handheld or suspended microphones for instruments, creating a very effective and subtle Doppler effect or phase microvariations. These are combined with the performer moving microvariatios. So this is already 2 degrees of freedom.


Another way is suspended speakers from the ceiling by a strong cable caring the signal. Rotating them and letting them oscillate by gravity gives another 2 degrees of freedom, a very interesting Doopler Leslie effect without motor noise and random too.


The bass absorbing panels can be suspended too and they oscillate at any moment of draft around the room. Reflections from them are phase modulated too in a combined random way.