Positive liberty vs. Negative liberty
​
Positive liberty is a proactive process, springing from the need of individuals to feel as if they are in control of their decisions. One of the effects of posivite liberty is that people may feel they are more in control than they really are.

Negative liberty is the absence of meddling in one's individual decisions : "by being free in this sense I mean not being interfered with by others". Interesting side note: ideal Romantic artist is the embodiment of heroic individual negative liberty. 

(from  Isaiah Berlin,  Four Essays on Liberty , 1969)

​That means that every moment events are so freshly
invented,
so newly born,
that it has almost no history in the piece itself
but its own actual presence.
 
Wolpe's distortion can be heard as a attempt to re-create the experience of  Beethoven's contemporaries when they first heard the Fifth, to conjure up a time when the work's course was still unforeseeable . "

(from The FIrst Four Notes by Matthew Guerrieri, 2012)