Changing alignment of lyrics at the beginning of a new system

[Eduardo Vieira da Silva]

Hello, list! I has been a long time since I posted to this list and since I 
actually coded with Lilypond. But I read the mailing list almost every day :)
I like to typeset songs using this typesetting style for lyrics: syllables are 
left aligned when they are the beginning of a new verse of a poem, and when the 
syllable at the beginning of a new system.
I can use this shortcut: lyrL = { \once \override LyricText #'self-alignment-X 
= #-1 } before the syllable which begins the new verse. But it is unpredictable 
which syllable will begin a new system. So, I was wondering if Scheme could be 
used to make the first syllable of a new system to be left aligned 
automatically.
I hope I can make sense.
Anyone takes the challenge? Sorry but I have no Scheme knowledge. I'm trying to 
get a grasp of Python first...

Eduardo Vieira

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