If an apprentice does not hear what a master hears, is then that quality not present in the music? Yes and no. In the world in which the apprentice lives no. ↗
Apprentice is the beginner - the first years you work in a craft in the European sense you are an apprentice. That takes 3 or 4 years. Then you are a journeyman. You can go from one master to another and learn other tricks and other secrets. ↗