This piece of music by Pyotr Tchaikovsky (1840-1893) is from 1876. It is from "The Seasons". Opus number 37a is also seen for this piece (opus 37 is Piano Sonata in G major).
Youtube comments ...
Valexz11PM: awesome...
the colors make it look so peaceful, the
sound is so clear...
it's beautiful...
¡¡¡really, really congratulations!!!
SuperGracelouise: I'm a June baby and I want this to be played
at my funeral ... so very peaceful. Thank you
cubusdk
marypianoanne: you play very good :D
i thought uyou put a
lot of effort into this piece.
great job!!
Bagriyanik32: Masallah Masallah cok güzel aq.
storozh587: Все хорошо классно,
только зачем педаль так
передерживать, звук
сливается и получается
кашеобразно
LanceK713: Great dynamics. Very enjoyable.
medeahe: you play it beautifully! great job!
bot51993: digital pianos do need tuning every once in a
while. there is a way to change it.
daniyell5: im playing this piece for clarinet
for solo and ensemble
oqla2000: i need som wine :) great done
polskajuzbezkradcy: well done, everything was done very well, you
played with passion through the whole song.
workaholic888: heartbreaking! awesome!
piskelletta10: so suonarla!! I can play this song!! forse è
l'unica!!;)
Bagriyanik32: Traumhaft
FrankenBosey: Very well done, sir. And likewise with all
your performances. Very consistent. -f
PullMyTriggerOK: I think your piano is a bit out of tune but
nice playing. And, try to use the dynamics.
21centurygirl: I love this piece and love to play it. I play it
a little bit slower at some parts and faster at
others, specially the end that could be a little
bit more ff. I think it depends on how the
player perceives the piece. Anyway excellent
job! :)
mistmv12: beautiful play :)
Toxxic88: Wow! Fantastic cover man.
I did this piece last year, then I abandoned it
half way because it got too hard and I was
too lazy haha :P. I have to say though, this is
inspiring me to pick it up again.
Beautiful cover and as always, *****
neskuma: gorgeous!... i did not find anybody comparable
who would intentionally strive for getting
maximal effect out of youtube performance...
excellent job as always!...
Musical Pieces 
