Also, don't neglect the arpeggios! They appear just as often, if not more often, than the scales within music. If you practice your scales and arpeggios well for years, you will be able to play the vast majority of repertoire because you have already learned the finger patterns and they are in your muscle memory.
I like to split my practice time into three equal parts. One part for warm-up exercises and scales, one part four studies and caprices, and finally one part for repertoire. However, I'm just an amateur doing this for fun.
Whenever undergraduates ask me for advice ("Should I do a course unit that interests me but is impossible to get a good grade on, or do I choose a course unit that is boring but easy?") I say "engineer your results" then after that follow your interests.
Shortage of places higher up the ladder necessitates this.
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Random stuff influenced by the thread and vomited out: -
(maybe it will trigger someone to say something better than I can)
geography,
intonation,
arpeggios,
shifting,
technique.
A scale is a piece of music - many forget that - and could be practised when you practise a piece of music that incorporates that scale (see comment on instrument-dependent repertoire below). But if we define as technique anything that is memorised (and technique is good to have), then it's best to memorise anything that is at all memorisable, and scales and arpeggios are.
Scales and arpeggios require different shifting, and this should definitely be practised.
When I came to guitar from piano and oboe, the concept of a fretboard was new to me, and learning its geography was intereting and important. I learnt the Segovia scale system, but the CG repertoire has so few scales that I quickly lost sight of their point.
Violin geography is easier than guitar geography, as the interval between strings is always a fifth, whereas on guitar you have four fourths and one major third.
Scales and arpeggios remind me of bicycles and running.
The difference is between limited movement and stretching out.
Interval intonation on the violin is probably one of the most important things (how are we at aug 4ths on one string?): - scales only offer major and minor (and sometimes augmented) seconds: Arps offer in addition minor and major thirds and fourths.
(ugh, how did this post get that long?)
Like many of you, I have long ago, memorized the basic scales , and arpeggios and their inversions, and consequently now more than ever, I am carefully watching where I am placing my fingers on the fingerboard . Don't just blindly play the notes. Think about the specific note that you are playing and exactly where your finger is on the fingerboard when you play it. Overtime I am finding that I have a much stronger, visual memory of the fingerboard's geography which helps with finding notes higher up on the fingerboard and jumping to those notes quickly and accurately.
In other words, if you're just playing the notes, you're probably wasting your time. However, if you actually spend some energy and time and actually apply the scales in a more interesting way, you can quickly eat up a lot of time, while improving your skills.
Yes, you can achieve the same thing with your basic repertoire, however, scales are much easier and free your mind to focus on other techniques while you're playing the scales.
Not sure what the answer to how much time should be spent practicing scales/arpeggios but it doesn’t hurt to practice them as much as possible. You can also practice the five modes of the major scales.
My most recent teacher would tell his undergraduates to plan on four hours a day. One each to scales/exercises (Sevcik, Dounis, etc), Etudes (Kreutzer, Paganini), Bach, and only the last block for concerto or sonata work.
That means, to me, that her teacher didn't give her the meaning of scales.
There shouldn't be a set time limit--that implies poorly guided teaching: "Play your scales for 15 minutes!"
That's a waste of time, because few students will do it efficiently or get anything out of it except, like Kamio, learn to hate scales.
I would give a VERY specific list of practice instructions, which to me means a complete routine of groups and rhythms, from simple to more complex. This can't help but to iron out the two typical "speed bumps" of playing the violin: Shifting, and string crossing. Students tend to initiate both too late.
And, by giving them a specific list of groups and rhythms, the student can internalize the process of mastering ANY passage work they need to play. Are you going to eventually teach it to them on the Tchaikovsky concerto? That would be too late.
Most of us are very uncomfortable at first with shifting up the G string. That's why the Flesch one-string scales are so important. What do you want to do--wait till they try to play Saint-Saens 3? That's way to late.
I'd add that only a little daily practice on one-string scales will help a violin to open up. Did you ever wonder why student violins often sound so bad in the highest positions? Partly because no one ever plays up there!
There are many other things scales can be used to practice: bow use is a big one. Have as an exercise the one thing all students hate: Playing colle at the frog. Do retakes at the tip.
Also, the ideal bow position is at a specific contact point on the string--but that changes depending on the position used. If you're high on a string, you should be almost on top of the bridge. Playing one-string scales in very high positions helps internalize where the ideal contact point should be.
Most teachers over-emphasize 3-octave scales. What a shame--so much lost technique.
Do you ever really reach the highest positions on any but the E string when you practice just 3-octave scales? Never.
"Nathan Milstein didn't practice scales"
Well, Milstein was a genius. Most of us aren't.
Playing scales is NOT about setting a timer. It's about efficiency and using them as tools to improvement.
Give your student a VERY specific process of how to practice scales and what to get out of them.
In a few weeks, they should be able to run through that list by memory.
I also like working with this book on the stops. There is a tendency to get accustomed to a single sequence of fingering, if you are just doing a regular scale. This book forces you to produce notes in tune for the same stop with both the 13 and the 24 finger combination. as a result, when you go to actually play the scale, you're suddenly much more open to multiple different fingerings.
If there's any value to "chunking," maybe break up the hour of scales throughout the day. That can help lighten the tedium (if that's a problem), but it also helps to keep in tune for each practice session.
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