When our minds are new and scratch-free,  they play the song they are meant to play.  The songs that were printed on them by their creator.  However, as we age and get hurt or scared, we have a tendency to let the scratches accumulate.  We start forming thought patterns that are toxic to ourselves and others.  We get caught in a quagmire.  We repeat ourselves until, what was once a beautiful, soulful or just a flat-out kick-ass song is ruined.