So I'm just learning this Coldplay piece and it has notes which are not joined but on the same stave. I'm wondering what the purpose of this is or rather what information it's trying to convey? Perhaps the lower notes should be played when the lower lyrics are to be sung, i.e. on the second repeat?
Later on in the sheets it's made slightly more obvious as some of the notes that are separated are slightly smaller.
I'd like to know for sure as I'm turning my sheet music into MIDI files so that I can use Synthesia to practice them.