Topmusicanswers
Re: Hanon exercises in ALL KEYS Yes, you use the same fingering for all keys. There are numerous instances in the classical repertoire where you need to put the thumb on a black key, and there are many other cumbersome fingerings, so this is good practice.
Should you practice Hanon in all keys?
Yes, it is common to practice Hanon in all keys, or at least some keys other than C major.
How long does it take to learn Hanon?
Last time I did them I spend 2 months on part I, 2 months on part II, and two months on part III. It takes me about 8 weeks to relearn one of these sections and bring it up to speed. I've been playing now for about 7 plus years. Hannon has work well for an old beginner like myself starting piano at 39years old.
