Initial music fade in

While playing around with music elements in the Creator I asked myself: wouldn’t it be cool to have music slowly fade in?
We have a “first sample delay” slider, why not add a fade in time for the first time a music element starts? Gradually increasing volume to the preset level over an adjustable amount of time.
I don’t know if there are limitations in the code of the players that would interfere with such a feature - but I would be happy, if the possibility to fade in could be included.