Other songs seem to want to last forever, continually cycling and recycling and flowing in an endless groove. Still other songs come to a screeching halt, cut off before their time. There are countless different scenarios, but a few helpful suggestions should help you work your way through to the finish of any song. The first thing I need to ask you to do is to play the song through as it stands. Just play what you've written so far and listen to it closely and analytically.
Transitions are very important.
In order for the song to flow smoothly, the parts should be connected as seamlessly as possible. There are five main parts to consider when writing a song. Keep in mind that every song is different, and every songwriter has a different motivation, but these five basic elements will help us for reference in our discussion, even if every song doesn't have all five. The parts are the intro, the ending, verse, chorus, and bridge. Your most basic songwriting instruction will tell you that the standard song construction is intro, verse, chorus, verse, chorus, bridge, chorus, ending.