This is from Burgmüller's "Harmony of the Angels", Op. 100 No. 21, edited by Ingrid Jacobson Clarfield.
I'm wondering about the difference between the green and red blocks. Doesn't the sustain pedal make the green parts sound exactly as the red ones?
I understand that sheets often use non strict notation for pedal-sustained notes, but here we have different sections of the same piece...
Considering (guessing) that the notation is different notation comes from the author (but not the pedal indications), would that imply that the author originally didn't intend to use pedalling in the green parts ? Or what?