One of the aspects of being a musician that appeals to me is the room for constant improvement. There is no point at which I will be finished and satisfied with my playing, so I continue to practice. This entry discusses various thoughts and habits Geoffrey Gilbert and Marcel Moyse have on practicing.
Gilbert has many suggestions on how to practice as documented in The Gilbert Legacy, written by Angeleita Floyd. I will list the ones that I found to be most insightful and important.
Use a metronome! We've all heard this countless number of times, but I think it bears repeating. On the matter, he said, "Don't practice too fast. Things that are slightly doubtful in rehearsal will only get worse in performance." William Bennett commented on Gilbert's teaching that "He didn't mind if you came to the lesson playing something really very, very slowly as long as it was one-hundred percent under control. You could come along playing a Boehm study, which was marked at 120 to the quarter and play it at 60 equaling the quarter--completely under control, and he was happy, and you would have achieved your objective." Gilbert also suggested that when working on a difficult passage, repeating the passage four times perfectly, then three, then two, then finally as written. The point is that playing the passage only once will seem much easier and manageable!
Concentrate on one concept at a time for 10-15 minutes (hand position, vibrato, tone colors, etc.) It is helpful to set a time period for focusing on just one aspect. Often, I find myself focusing on something like hand position for a few measures then get distracted by the music and forget about my hand position.
"To progress, practice regularly at least three hours a day with no goal except to improve." This is a very manageable goal, I think. Instead of setting more specific goals, such as "I am going to play this and that passage perfectly today!", I think the healthy goal of improving as a musician in regular practice sessions is more encouraging and beneficial to one's practice. This Gilbert quote reminds me of what Marianne Gedigian once said about practicing. She said that everyday, as we open our flute cases, is a new day for exciting possibilities.
Marcel Moyse is known to have practiced until he passed away. Trying to improve his flute-playing was never finished for him. Later in his career when he was busy teaching lessons and masterclasses during the summer, he would have to catch up on practicing in the fall: his son, Louis Moyse said, "For two months every year there was no flute except for lessons given to foreign students who followed him to St. Amour during the summer time. Around the middle of September he would put himself in shape again by playing for five or six hours daily and going through his repertoire which was more than 100 pieces known by heart."
Similar to what Gilbert said about practicing to improve, I've been told that one should be happy as long as something was achieved in a practice session. Did you learn how to play a high A pianissimo? Did you learn how to manage the air on the Mendelssohn Scherzo? Did you succeed in portraying the opening of the Copland Duo in a more interesting and musical way? It can be anything. Having broad (but still very effective and meaningful) goals make practicing less daunting and more interesting to me. Reading about various methods of practicing reminds me that practicing should be a time to experiment and play in a disciplined manner instead of a militaristic chore.