Volume dynamic GUI idea

[klesun]

I would prefer to have a shortcut to switch to "Edit Dynamics" mode. It should look same as default, but below (or above) every score row will appear some graph with a line for each channel and a point per chord, movable vertically, that will represent channel volume at the end of chord sounding.

curve transitions are somewhere in far perspective

suppose, in chord model we should store something like this:

chordList: [{
    noteList: [...],
    dynamicSet: [{
        channelNumber: 4, 
        endVolume: 32
    }, ...]
}, 
// the next chord will be played on Crescendo from 32/127 (piano) to 127 (fortissimo)
{
    noteList: [...],
    dynamicSet: [{
        channelNumber: 4, 
        endVolume: 127
    }, ...]
}, ...]