Enigma Beethoven : Sonata op. 31 n° 2 "the Tempest"

Beethoven. The great, monumental reference point of every musician and above all of a pianist. Since the years of the Conservatory I did not seriously approach a new Piano Sonata by occasionally brushing up the marvelous Appassionata and Waldstein.
 The Sonata op. 31 n ° 2 was often in my thoughts but never completely addressed. Lately, thanks to more free time working less in the theater , I took the courage to approach it, discovering an unexpected world.
The tone is already an obscure D minor , not very popular in Beethoven apart from the great Ninth Symphony.
 The first movement begins in the first 6 bars already with 3 changes of Tempo : Largo in which a beautiful chord is unraveled from the deep bass and from which the other notes rise as reverberation in the water , restless two-by-two descendant quavers in the Allegro that resolve on an Adagio and then repeat everything and develop it up to the real first theme in D minor .
 Here begins the dialogue between the deep and acute tone of the piano , the most authoritative and virile in the bass to which an overwhelming complaint responds , a spasmodic yearning that will accompany all this movement.
 Then there are the recitatives , incredible moments , like space-time gaps in which the notes of the piano become voices , lacerating calls of souls from unknow depth.
Quite indeed Beethoven demonstrates an overwhelming expressionist modernity , just think that the work was composed in the early 1800s , a dramatic period for the Master when deafness began to be predominant as he himself confides in the Testament of Heiligenstadt and will bring it to a gradual isolation from the world.
 The second movement is an Adagio in B flat major , 7 minutes of peace and purity with crystalline and apollonian themes , but undermined by the rumble of timpani in the distance , a momentary pause in an ecstatic limbo that would soon be overwhelmed by the return of the tight rhythm of the third and last movement , Allegretto.
 For me it was the most difficult to interpret, being carried by nature to greater vehemence. Expanding in another 7 minutes this perpetual motion reveals an almost hypnotic trend . In the incessant overwhelming race, the unrestrained rhythm prevails over the melody, the wheel turns tiressly searching for an answer that it will not find , but which is inherent in the research itself , as in life.
 And so ends this mysterious Sonata , the Tempest ; after a last rise and chromatic scale descending at an octave distance, the D minor moves away , fades out there dispersing into the silence from where it appeared.

Do you want to taste it with me?
Here it is:

First movement :
https://youtu.be/HPESo01z_ok

Second movement :
https://youtu.be/172k82j4KQM

Third movement :
https://youtu.be/4_Bshzu0sqk