Let us discuss the benefits that come from focused practice, and the need for such practice by any trombonist who is ambitious, or is considering a musical career. This article was originally submitted to the trombone list in September 1996. The list also holds many fine posts on structuring and optimizing practice time.
If you practice the trombone for 2-3 hours weekly (six half-hours, whatever), you will slowly learn the notes and some rhythms. You can develop a fairly nice midrange sound if you simulate a good example, like a teacher. You can have fun. Many beginners, junior high trombonists, and some high school players practice this way.
(And I’m not counting ensemble rehearsal time in this. It does not really count. Well, yes it might build your endurance, you can memorize the field show, and you learn a lot about playing with other musicians, how to act, how to follow a conductor maybe, how to take directions. But this is not the same as the skills gained in the practice room.)
If you will practice 5-6 hours a week, you can actually make some slow progress if you manage that time very carefully. You will probably find time to do a more comprehensive warm-up routine. You can actually, probably, get material Ready To Play in a lesson, learn the studies well enough to play them with no reading mistakes, no hesitations, few errors. You may find time to work on the band parts. There may also be a little time available to truly Practice some of the Plain Technical Work, maintenance, that we should all try to do: extensive flexibility routines, scales and arpeggios galore, the weird keys, dynamic workouts, etc.
If you can get the practice hours up to ten, week after week (40 a month), you will notice some important and valuable developments in your playing. You will become more “fit.” You can handle 5 or 6 books at a time, or more. There will be more time to regularly address things the Little People often neglect: air exercises, tunes by ear, high and low range, some jazz, recording yourself, clefs, the outside keys, real sight-reading, duets with peers, tough etudes, audition materials, orchestral excerpts, jury solos, vibrato, quality time with pianists. Your reading will really improve! You won’t be sore the day after a big blow. You can use the metronome, mirror and tuner properly. Do dozens of routines of flexibilities, scales, arpreggios. If you find something really hard, there is time to work it out, and work it up. There will be time to solve any bad playing habits. You will be thinking about trombone while you sleep! You’ll be quite proud of your playing and your progress. You will deserve to Get Some Work.
If you will develop the stamina to really practice 15-20 hours a week, then you get All Of The Above PLUS you’ll tear through the literature much quicker, build a repertoire after a while, learn tunes and the changes, progress quickly with unusual techniques, review old material, be a serious competitor at professional auditions, and much more.
If you cannot do this . . . well, the benefits will be elusive. Know that there are students all around the country practicing 20+ hours a week. You will meet them, at the audition. There will be one winner.
(Some other instrumentalists will find these numbers a bit low; and maybe they are low. Ambitious pianists and string players devote much more time to practice, because they can.)