Linktext is the text you want folks to see and click upon. Paste your lyrics in.
Sloppiness here is a bad habit.
Double click your track and watch the lyrics scroll up to the music. Best not to play the track while editing the lyrics, specially when online with your browser and SimpleText in the background while you wait for your web opponent's next chess move. You've been warned. Stick to one speed in the plugin options. To properly parse them, edit them in SimpleText and copy-paste the whole lyrics text for each time.