Author: Chris P
Date: 2007-12-21 07:42
Dutchy, to transpose oboe parts (or any concert pitch treble clef music) on cor, play everything up a perfect 5th - you'll soon be able to do this at sight with practice. So written bottom space F will be C a 5th higher on cor.
As a cor is pitched a perfect 5th lower, the music has to be transposed UP a perfect 5th to compensate. You'll also have to add one sharp or take one flat from the key signature, so concert pitch Ab major (4 flats) becomes Eb major (3 flats) for cor. Likewise, concert C major becomes G major for cor. So yeah, 'Summer Rain' in concert Ab will therefore be played on cor in the key of Eb (all up a perfect 5th).
Likewise with oboe d'amore - as it's pitched in A (sounding a minor 3rd below concert pitch, same as an A clarinet) the music has to be written a minor 3rd higher to compensate, so concert G major will become Bb major (add 3 flats or take 3 sharps).
As with all transposing instruments this is done so when you see a cor or d'amore part with a written G, you play G (xxx|ooo) - it saves having to learn different fingerings for each of the instruments in the family so you can go from one to the other easily.
If you get the chance to try out or borrow a cor, don't let the offer pass you by. I only took up oboe with the intention of playing cor.
Former oboe finisher
Howarth of London
1998 - 2010
The opinions I express are my own.
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