No question that I agree with Foulestroupe--I could go on for hours about bad music teachers and the damage that they do. A good music teacher starts out by identifying the strengths and weaknesses, and finds a way to engage the strengths right away, and then develops a systematic way of building up the weaknesses. Bad ones tend to have their own little regimen that they go through, regardless of what effect it has on their students musical development--

There are a lot of bad teachers out there, many of whom only teach because they need the money, and not because they have any special ability to teach. Some are of the type that takes the joy out of music by drilling and scowling, and such things, but some of the truly worst teachers can be charming, fun, and entertaining, but who don't manage to teach their students much of anything--

It is a mistake to reject a teacher just because they make you do things that are difficult when you want to do something that is fun, though, because all the good stuff is hard the first time you try it--