As a musician, I frequently edit song lyrics.
I use New Paragraph (Return key) to separate the verses, chorus and so on from each other, while I use Linebreaks (Shift-Return or Alt-Return on my Mac, depending on the program) to separate lines within a given verse or chorus. 
As far as I know, there is no App-independent way to achieve this on the iPad. Pages has a menu command for this, but neither Apple Notes nor Craft have.
I would greatly appreciate a way to insert a Linebreak character by hitting alt-Return in Typefinity!