I was lucky enough to spend my first two years in a department run by someone who really knew what he was doing and who took my training seriously. I don't beleive anyone but the most inately talented and naturally organised teacher can say they have completed their training after one year of the PGCE. I leaned as much if not more in the subsequent two years. With music being slimmed down in many schools such places are few and far between and many music departments rely on single teachers - it's take on the department or find another job and if you are an NQT, good luck. So I do know of teachers who start out as Heads of Dept in their first job and make a very great success of it. However, the question I would ask is, where are the opportunities to learn from teachers of experience?