I've worked on this build for quite some time and decided to share it with you guys. Of course my own bard isn't max level yet, but I played full Light (and Wind for a bit) on Nyos so I know how all the talents I pick work xD
I'll also explain why I picked each talent and how important they are.
I'll give a color to each target to point out their importance:
Blue: Vital talent, get ASAP.
Yellow: Important talent, get after vital talent.
Red: Filler talent, only chosen to unlock next row.
As for my build, I first put 14 points into Wind, before getting light talents.
Zephyr - Only put one point in this to unlock Wind Melody Knowledge.
Infuriate - Important, gives a fully stacked courage a 75 atk boost.
Wind Melody Knowledge - Important, lowers CD on all your wind skills.
Gentle Sway - Makes your buffs (including baptism and majesty, which is my main reason for speccing into wind in the first place) 20% more effective.
You only use this row to unlock further talents. Personally I picked Blessings of Light, 'cause I liked the health boost it gives, but if you want to do a bit more damage instead you could go for Advanced Harmony of Light.
Sustained Melody - Makes your hymn skills (thus baptism) last longer. It's also the most useful out of the 4 talents.
Divine Music of Light - Filler Talent. Only put 2 points in it to unlock the next row, put a third in it later if you unlock a new row.
Solo of Light - Your self-heal which also makes you heal more and has a chance to trigger Angelic Harmony. Get lvl1 ASAP and put points in it whenever possible.
Halo - Increases the range of your buffs, which is always useful.
Stare - Filler Talent, only got this to unlock something later on. Don't put points in it, until there's nothing else to put points into.
Light of Life - Lowers CD on your main heal, get ASAP.
Divine Shower - Boosts the def Majesty gives, it's useful, but there's more important talents out there.
Melody of Light - Boosts your Light Mastery, it's one of the more useful filler talents. Get this before other filler talents.
Angelic Chorus - Has a 30% (45 if you get a rune) chance to lower CD and mana cost of your heals. It's useful, max ASAP.
Advanced Solo of Light - It lowers the CD on your self-heal and makes it heal more. There's more important talents though.
Notes of Light - Lowers CD on your offensive Light skills, max it.
I hate the 7th row. I find Improved Chord of Light useless, because I'm support and no DD and I could never really find a use for Song of Life either. I guess that's a matter of opinion though, because I know some people who love Song of Life.
Bath of Light - Improves the heals Baptism gives, it's important.
Chant of Revival - One of the things that makes a light bard an awesome healer, combat res. Get it ASAP. I personally never saw a point in putting more than one point in it though.
Softening Melody - Awesome talent. Makes you heal the people affected by your buffs more. It's awesome.
(I love the Eight Row xD)
Life Awaken - Best. Light. Talent. Ever. Resets the cooldown of your heals whenever you cast Majesty or Baptism. Max it as soon as you can, it's awesome. You need it.
Advanced Chant of Revival - Filler Talent. You can take Solo of Wind (in the Wind tree) instead of this if you have trouble keeping Courage up.
Just for the record, I don't claim to be an expert on bards or anything. Just thought some people would think this is helpful.