Friday, 6 May 2016

Double Reed Resistance and Adjustment Tips

Double Reed Performance and Adjustment Tips - What To Do and When

This is a big subject. Knowing what to do to make the most of a double reed becomes important to most players after only a few months of learning. Even with the available guidance of a knowledgeable teacher (and this is not always available) there will certainly come a time when a reed one is reliant upon just 'does not play' as it used to and something must be done in order to get through a performance. There are many textbooks and articles that can help with illustrations and advice though the best contact probably remains a successful player with experience of adjusting and if possible the making of their own reeds. This is a quick reference summary from my experience and advice I have given to pupils over many years -



Best practice starts with care in soaking the reed for about 60 seconds in water up to but not over the level of the thread - every time before you play. Bassoon reeds can be placed entirely in the water. Some players always soak their reeds by placing them in their mouth. I feel that this exposes the cane to an unnecessary degree to sugars and acids from saliva - eventually shortening the playing live. Water is cleaner, warm water is best as this relaxes the reed fibres more quickly. Not wetting at all prior to playing is a sure route to disappointment and shorter reed life.

Once wetted the reed blades may require subtle adjustment to achieve a good-looking aperture.

  • If the opening is too great the blades may be pressed together with a light touch of the fingers taking care to not press so hard that the cane splits. If the reed is wired (oboe or bassoon) adjusting at the wire by hand or using a small pair of pliers may be required. For bassoon reeds adjusting at the second  (middle wire) 'opposite' to what initially seems logical will often be what is required as the first wire will act as a fulcrum.
  • If the opening is too small the blades may require the opposite correction with a gentle squeeze to increase the aperture on the oboe reed and once again the 'opposite' correction for a bassoon reed.
Test the aperture and the readiness of the reed to play by blowing a 'crow' on the reed - accomplished by playing more of the reed in the mouth than usual and blowing a sustained and forceful air stream with a minimum of lip support. This is a simultaneously high and low rackety noise that is an indication of a reasonable 'balance' to the reed. If after practice you cannot obtain a crow then that reed is likely to need further adjustment to get into a proper balance and a reed knife may be called upon to remove cane. Always use a plaque when working to remove cane from a reed. I prefer a 'bellied' plaque, as these tend to provide the reed blades more support during scraping. Always work slowly and carefully with a wetted reed and test frequently.

  • If the upper noise is absent in the crow cane may need to be scraped from the tip area using the knife and a plaque. It is often said that the secret to a good reed is a thin tip.
  •  If the lower noise is hesitant or resistant in the crow the tip area may need to be 'integrated' into the heart and back profile of the reed. Check against a strong light source to see the location of darkened areas on the reed. Compare the 'look' of the problem reed to the appearance of a good reed and see what areas might need to be scraped.
  • If all looks good but the reed is still resistant then try scraping cane from the rear of the cut away profile at the 'back' of the reed vamp. Do this slowly and keep testing, as you do not want to take away the resilience of the reed and leave it incapable of supporting pitch.
  •  If the crow is satisfactory but the pitch has gone flat the usual correction on an oboe reed is to carefully 'clip the tip' removing a fraction of a millimetre of cane. To do this you will need a very sharp straight knife and a cutting block. Test the result after clipping and be prepared to rebalance the reed if necessary to ensure the proper relationship between tip, heart and back of the reed. On a bassoon reed this may also be the appropriate correction before cutting the tip try arching the reed at the second wire to see what effect this has upon pitch. Bear in mind you may have to rebalance at the first wire also to maintain a proper aperture opening.
  • If the crow is satisfactory but the pitch has gone sharp the cane may be 'clogging up' and might benefit from a light general scraping overall to remove the build up of skin cells, saliva and dirt that may have come over time. If no response is gained from the approach one can take 'pitch' out of a reed by scraping the tip, the heart region and or the back to give the reed back its flexibility. Try this systematically and in very small stages and test frequently. It is very easy to go too far!

A further note - Playing the oboe and the bassoon should require a strong, well-supported air stream. I should not require a great deal of 'biting' at the lips or cause fatigue in your embouchure within a few minutes of blowing. The most attractive double reed sounds are lyrical, exciting and characteristic over the entire range of the instrument without any sense of hesitation or 'dropping out' due to problems with basic tone production. Strive for this always and try to make sure that, as much as possible, you have your reed on your side!

-------------------

The tips and comments above are the result of many years of providing help and advice, my personal interest and study, and the teaching that I have done during my career. I have many colleagues and teachers to thank for sharing their thoughts and suggestions on this and other topics. In addition I am indebted to Woodwind & Reed, Cambridge ( www.wwr.co.uk ) where, in the course of helping customers, many of these concepts have been refined and have proven helpful.
Thomas Dryer-Beers



No comments:

Post a Comment