Just one idea...
Track 1 - Two adjacent clips on the sequence of a png blue-line image grabbed from the WEB, with a dissolve transition between them
Using the SCALE effect and its base Y slider, both have been identically sized and positioned one below the other.
The line can be made transparent if desired, and superimposed over a lower track image
Another approach would be to use a single line clip and animate its SCALE effect base Y to change position. Then save the effect as a template, which can be applied to later edits. Two templates might be saved - one to move down and the other to move up after a song title is changed. Experiment to see what works best for you.
Tracks 2 and 3 - Simple text overlays, songs 1 & 2 respectively, for the duration of the sequence
Text can be loosely positioned by dragging it in the preview window
Song_title.mp4