I don't record classical music, I compose music which often has vocals (lyrical solo - not choir), and so a solo instrument that holds a long note needs some form of modulation to balance the tonal character of the voice.
A non vibrato clarinet is not suitable for this type of expressive solo.
Hermann's Souvenir de Voyage is a clarinet quintet, so vibrato in such an ensemble is not going to work, I am referring to using a solo clarinet, over a string section.
Can you imagine Acker Bilk's Stranger On The Shore without any vibrato,
It seems that countries such as Germany and Austria are steeped in tradition of no vibrato on clarinet, so I am not expecting VSL to introduce a vibrato articualtion any time soon.
What I was asking, is why this non vibrato tradition exists.