This post is about building technique and keeping technique. I will refer to hanon a manual I have worked with for about 5 years or so. I have gone through the book several times especially on Sundays; it is an invaluable tool for developing finger dexterity.
Some people say to transpose Hanon; but people who say that are not really plugged in to what hanon is for. Hanon is strictily for finger strengh and dexterity. there are some exercises in the virtuoso section which are transposed but the true purpose of hanon is to build strength.
If you want to play in every key you pick up "Beringer" dexterity exercises, "Clementi's adnus parnassum", "Pischna" or my favorite "Raphael Josephy"
With that being said, sometimes I dont have time to go through exericises 1-60 and even when I do I am usually so burned out by exercise 40 that I dont put sufficient detail and concentration to the later, and the most important, exercies.
What I started doing is work from the back of the book toward the front. The earlier exercies then become cool down exercises after the virgorous work out of the virtuoso exercises.
I also find that because I am fresh i can pay sufficient attention to what I am doing and finally I am working with the crazy trills contained in the later section.
Has anyone else out there done anything similar?