Okay, there's a lot of tabs on here which require a capo, so I thought I'd try my 
first guitar tab. It seems pretty accurate, sounds good,
and they're also the chords that Ellie uses when she plays Lights live.

Chords:
Ab5 (133xxx@4)       F#5 (244xxx@1)    E (022100@1)     C#5 (x133xx@4)e---      
                   B---
                   G--2     G--6
D--6      D--4     D--2     D--6
A--6      A--4     A--1     A--4
E--4      E--2     E---     E--X

Intro: (count in barrs of 4, and then change. So G#5 1 2 3 4, change etc)

Ab5 (133xxx@4)F#5 (244xxx@1) E (022100@1) C#5x2 (x133xx@4)
Verse:

Ab5 (133xxx@4)       F#5 (244xxx@1)       E (022100@1)          C#5I (x133xx@4)had a way then losing it all on my own
      Ab5 (133xxx@4)       F#5 (244xxx@1)                  E (022100@1)      C#5 (x133xx@4)
I had a heart then, but the Queen has been overthrown
     Ab5 (133xxx@4)             F#5 (244xxx@1)        E (022100@1)          C#5 (x133xx@4)       
And I'm not sleeping now, the dark is too hard to beat
    Ab5 (133xxx@4)            F#5 (244xxx@1)      E (022100@1)             C#5And (x133xx@4)I'm not keeping now, the strength I need to push me

Chorus:
             Ab5 (133xxx@4)                F#5You (244xxx@1)show the lights that stop me, turn to stone
     E (022100@1)              C#5You (x133xx@4)shine it when I'm alone
         Ab5 (133xxx@4)            F#5And (244xxx@1)so I tell myself that I'll be strong
     E (022100@1)                  C#5And (x133xx@4)dreaming when they're gone

Ab5 (133xxx@4)             F#5'Cause (244xxx@1)they're calling, calling, calling me home
E (022100@1)               C#5Calling, (x133xx@4)calling, calling home
             Ab5 (133xxx@4)               F#5You (244xxx@1)show the lights that stop me turn to stone
     E (022100@1)               C#5You (x133xx@4)shine them when I'm alone

(Home)

Verse 2:

Ab5 (133xxx@4)     F#5 (244xxx@1)   E (022100@1)     C#5Noises, (x133xx@4)I play within my head
       Ab5 (133xxx@4)      F#5 (244xxx@1)             E (022100@1)          C#5Touch (x133xx@4)my own skin, and hope that I'm still breathing
    Ab5 (133xxx@4)            F#5 (244xxx@1)    E (022100@1)            C#5And (x133xx@4)I think back to when, my brother and my sister slept
Ab5 (133xxx@4)          F#5 (244xxx@1)        E (022100@1)       C#5In (x133xx@4)an unlocked place, the only time I feel safe



Chorus:
             Ab5 (133xxx@4)                F#5You (244xxx@1)show the lights that stop me, turn to stone
     E (022100@1)              C#5You (x133xx@4)shine it when I'm alone
         Ab5 (133xxx@4)            F#5And (244xxx@1)so I tell myself that I'll be strong
     E (022100@1)                  C#5And (x133xx@4)dreaming when they're gone

Ab5 (133xxx@4)             F#5'Cause (244xxx@1)they're calling, calling, calling me home
E (022100@1)               C#5Calling, (x133xx@4)calling, calling home
             Ab5 (133xxx@4)               F#5You (244xxx@1)show the lights that stop me turn to stone
     E (022100@1)               C#5You (x133xx@4)shine them when I'm alone

(Home)

Ab5 (133xxx@4)           F#5Lights, (244xxx@1)Lights, Lights, Lights
E (022100@1)             C#5Lights, (x133xx@4)Lights, Lights, Lights



The rest of the song follows the same pattern. Get out there and download Lights, 
let's get it to number one for the amazing Goulding. :)

Thanks.
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