I'm a freak everything has to be totally flat when I play. Ed Will my jazz teacher set up everything completely flat and then you'd tilt your snare drum away from you so I do that too. So my snare tilts away from me.
In other words if a teacher only teaches in one way then they conclude that the kids who can't learn well that way don't have the ability when in fact it may be that the way the teacher's teaching is not a particularly good match to the way those kids learn.
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A friend of mine said no matter what I do I always look like an English teacher. She actually said you still look like a Campbell's Soup kid.