Well first of all,you're using the wrong talent calculator XD
This is for our version in eng:
http://eu.allodswiki.ru/calc/#!9!111....…...!a/A!a/A!a/A
Then,I noticed a few things that I cant explain in your build:
1-You took Elegy rank 3,while Cantata rank 2 deals more damage,and you spend the same number of Talent Points:you have to take Elegy r3 only if you plan on taking Cantata r3 too;
2-You took Protective Tune r3,that isn't really different from rank 2,or at least in my opinion,not worth spending 3 points on,because looking at the defensive rubies you took,you shouldn't die that frequently;
3-As skalds said,Lullaby is useless in PVP,because even if your oppponent doesn't have his blessing on,it fades as soon as you hit him;
4-You took Raving Blade rank 3,that's a good skill indeed,but I think it shows it's worth in PVP only in combo with Solo:You pull the enemy with Serenade,than you use your racial ability(unless you're Kanian),Solo and Raving Blade:this combo deals a ton of damage in PVP;
5-You took the anti-aggro rubies,which aren't very usefull in PVP,to get Combat Tune,that reduces Raving Blade CD's of 3s and the energy you use to cast it of 2 points...is that really a big difference?You could have taken the rubies Loud Timpani,that even if you don't use Timpani,reduce your Chord's energy cost by 6 points(Disharmony)and 9 points(Solo),that seem far more usefull to me,but I'm a Chord maniac,so I don't really have any right to speak on this matter

.
And remember that whenever you want to create a build,you should first ask yourself the question:"What is it that I want to do,and how?"