Showing posts with label transposition. Show all posts
Showing posts with label transposition. Show all posts

Wednesday, 19 January 2011

Learning how to play transposed parts

If you play professionally, or even if you play in an amateur way in a community orchestra,you are going to come across horn parts in keys other than F. When you do so, you have essentially two choices. Either you write every such part out for horn in F, or you learn to transpose at sight.


But it might be that sight reading even in F is a bit forbidding - it is for quite a lot of people. So to be able to read parts in other keys may require that you improve and combine two separate skills - transposition and sight reading.

Sight reading frightens a lot of people - many think that it is a black art only mastered by professionals and not to be vouchsafed to mere mortals in the amateur world. Certainly professionals have to have a high degree of mastery of it, but decent sightreading skills are not beyond amateur players. I have described before how to go about learning sightreading.

Now, for transposition. Writing out transposed parts in F is a good idea in terms of understanding how transposition works. Different people have different ways of thinking about it, but I favour the simple interval method.

Consider for example horn in D. D is down a minor third from F. Most transposing parts are written without key signature, effectively in C major. So down a minor third from C is A. You're now in A major instead of C major. In the part written out in F, write in the A major key signature (three sharps), and then write out all the notes a third down. All the sharps and flats will organise themselves automatically as a result of the new key signature, except for where there are accidentals in the original part, which you have to deal with by hand.

For accidentals you look at the newly-written transposed note before the accidental is applied. If it is a natural, all is simple, just write in the same accidental as in the original. If it is a sharp or flat as a result of the key signature, then what you need to do is change the note by a semitone in the same direction as in the original part. So for instance, if you have an Ab in the original part, moving down a third changes it to F-something. Because of the key signature, A natural goes to F#. Ab is a semitone lower than A natural, so the transposed note must also be lowered a semitone, from F# to F natural. So you write a natural in front of the F.

If you do all that right, you now have a part correctly written out in F. The same principle applies to all the other different keys. The only thing different is the interval and therefore the key signature. These are the most common transpositions.

A - up a third, add 4 sharps to the key signature (to E major)
G - up a second, add 2 sharps to the key signature (to D major)
Eb - down a second, add 2 flats to the key signature (to Bb major)
D - down a third, add three sharps (to A major)
C - down a fourth, add one sharp (to G major)
Bb basso - down a fifth, add one flat (to F major)
Bb alto - up a fourth, add one flat (to F major)

I've left out of that list transposition from horn in E. There are two possible ways of thinking about E transposition. One is to just flatten every written note, the other is to go down a second and add five sharps to the key signature. Both methods work perfectly well, and have the effect of lowering pitch by a semitone.

Of course, notation software such as Sibelius or Finale can do all this automatically, with you typing in the part as written, and then having the software perform the transposition for you. But if you are ever going to transpose at sight, you need to work out how to do it for yourself by hand with pencil and paper.

Now, if you're going to progress from transposing on paper to transposing at sight, three things are necessary. One is that you have got your sight-reading good enough that you don't panic about it. Second, you have to be familiar with your scales and arpeggios and key signatures, and third, you need to have understood thoroughly how to do the transposition on paper.

Then what you do is practice slowly sightreading orchestral parts that have been written for horn pitched in various keys. You'll notice that, particularly for 2nd & 4th horn parts, often almost all the notes are in the C major arpeggio. So if you know your A major arpeggio, transposition at sight from D becomes much easier - you just play the equivalent notes of the A major arpeggio. Give or take an octave, that is only 3 notes that you need to learn!

As the parts go higher, you get more notes of the harmonic series, but again you will relatively rarely see written notes that aren't part of the C major scale. So if you know your A major scale, you're still in good shape. Again, the same principle applies to the other keys. So, transposing at sight is much easier if you know the relevant scales and arpeggios.

As for where to go to get horn parts to practice transposition, I can recommend the IMSLP website. Perhaps start with some of the Mozart symphonies. IMSLP has horn parts available online for some of them, I'd recommend you start with the most famous ones, symphonies 38-41. Then try the Beethoven symphonies.

Saturday, 13 February 2010

Joined a new orchestra

I've now joined the Hillingdon Philharmonic as a regular player. I've deputised for them a couple of times before, most recently at the concert in Coventry Cathedral in October.

The regular first horn there has very decently invited me in as joint principal horn, and we've come to an amicable agreement that he and I will divide up music between us so that for each concert so we each play first for some of the time.

The next concert is at the end of this month, and consists of the Brahms Academic Festival Overture, William Walton's ballet suite The Wise Virgins, (which is an arrangement and re-orchestration of various Bach pieces, including Sheep May Safely Graze, and one of the chorales from the St. Matthew Passion), the Bach Concerto for 2 violins (no horns in that), and finally Brahms 2nd Symphony.

He's invited me to do 1st for the symphony, while he plays 1st for the other half of the concert. Both halves of the concert have some wonderful solo moments for the horn, so I would have been very happy with either half.

The symphony if famous among horn players, in that it has a prominent solo in the slow movement for "Horn in H", which is German for horn in B natural basso. It is the most awkward possible transposition, down a diminished 5th. So you have to read down 2 lines, and put a sharp in front of every note except B.

That would be reasonably challenging if the part were a straightforward Mozart-style part sticking basically to the harmonic series written in C major. But Brahms expects the horns to be far more chromatic than that, and includes A flats, B flats, E flats and D flats in the part. (You can see it at the IMSLP website).

This next bit is addressed to high school students who hope to become professional horn players one day. You must learn your transpositions. This particular movement is so famous that I know of some people who have written out the part in F. But horn in B natural, while relatively rare, is by no means unheard of (I've also played Schumann's Rhenish Symphony which also has passages for horn in B natural).

Professional orchestras are chronically short of money, so it is entirely possible that you would have to play a standard of the romantic repertoire with just a single rehearsal on the day. That means you either have to know the piece well beforhand, or be able just to play it, transpositions and all, as well as people who have been around for 20 years and have played that solo a dozen times or more. You cannot afford to be flummoxed by transpositions.

Monday, 20 July 2009

Transposing

If you want to become a professional horn player, or even an amateur who plays regularly in a community orchestra, you must be able to transpose at sight. A lot of the standard orchestral repertoire that involves transposition, and you will be lost immediately if you can't put a transposed part on the stand in front of you and play it with almost as much facility as if it were in F.

I've just taken a look through all the symphonies of Beethoven, Brahms, Dvorak, Mendelssohn and Schumann. This is all very much standard early romantic orchestral repertoire. Both professional and community orchestras play this stuff all the time. I counted up all the transpositions, according to how many movements in each part were in each key. These are the totals I came up with.

Horn in A: 8 movements
Horn in G: 2 movements
Horn in F: 72 movements
Horn in E: 27 movements
Horn in Eb: 40 movements
Horn in D: 52 movements
Horn in C: 34 movements
Horn in B natural: 4 movements
Horn in Bb: 32 movements

If you hope to go to music college as a performance major, your transposition capabilities should be pretty secure before you finish high school.

And no, nobody is going to write out horn parts for you in F. And no, you won't have time to do that yourself if you ever become a professional - you might only get one rehearsal on the day of a concert and then have to perform. You just have to be able to put the music on the stand and play it.

So, how to learn how to transpose? There are a number of techniques. I work out what the new key signature should be, and then think into a different scale (and therefore a different set of fingerings). Others imagine the piece in an odd clef and then add or subtract an octave.

Many of the Kopprasch studies are indicated to be practiced transposed in addition to being played in F. Do that. Slowly at first, and then faster so that eventually you can play them as fast transposed as you can in F.

Practice transposed sight-reading. I explained how to improve your sight-reading in a previous article. Now you have to do it all over again in different keys. Complain all you like about it, then get on with it. The audience at a concert neither knows nor cares about transposition, and will make no allowance for it when deciding if the horns have fluffed too many notes.