who is composer of this?

[paris]

this is a piano concerto and the composer is from 20th century from France.  Its specificity is that is written just for left hand (although is played with both hands) because composer wrote it for his friend who lost his right arm in war 
i'm interested in name of this composer. has anybody played it maybe?

[Ludwig Van Rachabji]

I believe you are referring to Ravel.

[DarkWind]

You are undoubtedly referring to Maurice Ravel's Left Hand Piano Concerto in D Major. He was not his friend, and Wittgenstein wasn't particularly fond of the piece until a few months afterwards, where he realized the true beauty of this incredible work.

[dlu]

To be played "properly" it should be only played with the left hand...it's kinda cheating with two...didn't one composer make a two hand trascription of the work though?
DLu

[nanabush]

Doesn't a two hand transcription completely destroy the reason he made it for one hand? 

[musicsdarkangel]

Doesn't a two hand transcription completely destroy the reason he made it for one hand? 

Of course not, it is written because some people only have one hand....or there other hand is injured.

While my hand was injured, I learned a beautiful Scriabin nocturne. 

I would relearn this in a second for a concert, and use both hands so that i can play it even better.

I have a recording of Alex Weissenberg playing this nocturne, and there's no way he did it with just his left hand, it sounds too good.