Neat, and tough to do synthesized
Just so you know i do play violin among a couple other instruments, so i'm not a techno junkie and do appreciate this music, and have played in quartets before to boot.
I loved the chords and how it flowed, that my friend was gorgeous. The only thing that lost me was some the melody, too many skips and leaps loses the listener a bit. Just make some of your lines closer together and you'l be just fine. When it leaps around like that though it just doesn't fly, at least in my opinion.
The song would be even more beautiful live i'm sure, with a violin doing more tasteful vibrato than the constant one provided by the synthesizer, which is completely not your fault, just a note to think about.
Overall i liked it a lot though!
9/10 for the melodies
5/5 because this doesn't deserve that low of a score