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Sounds like bad teaching to me, I taught for 15 years and my last job was teaching masters degree music students. Small nuggets of information should be presented, digested, demonstrated and practiced before moving on to the next, if the teacher has any experience this should also be in a coherent and logical order. Blinding you with information and then showing off is not the way to go, in honesty the only way my students would see me playing to full standard is at a gig, in a lesson my job was to present what is in front of us in a digestible way.