When selecting text using the mouse and starting on the right side of text, as soon as the cursor is moved near the left edge the lyric editor begins scrolling up and the selection extends up undesirably.
Steps to repeat:
1. Enter song lyrics that are at least 3-4 verses.
2. Attempt to select the last line of the 4th verse by starting on the right side and dragging until you reach the left margin.
3. Results > Selection will extend up to select several more lines of text. probably all of verse 4.
Here is an unlisted screencast showing the behavior:
https://www.youtube.com/watch?v=-blLDvJltG0&feature=youtu.be