Author: oboeblank
Date: 2006-09-23 15:59
The number of "trills" or finger wags depends on the rythmic unit and tempo.
For instance, if you are in 3/4 and the little melody is quarter note C, eighth notes DE with trill marked over the E and quarter note F, the trill on the eighth note E to F is only a triplet-one finger wag.
If you have a dotted eighth note E with a trill marked, followed by written-out nachschlag, terminus or thirty second notes DE going to F, then the trill will be five notes-two wags of the finger.
If you have a cadential trill-two beats or longer, you gracefully ease into the trill, slow at first and then quick towards the resolution. Think of the long trill at the end of the Saint-Saens sonata from D to E. The trill lasts, I think four bars. If you trill flat out as fast as you can it sounds mechanical, if you ease into it it sounds natural and above all, musical.
Trills always need to sound musical and intended and never superfluous, gawdy or grotesque-unless required by the composer. Berlioz Symphonie Fantastique comes to mind in the grotesque category.
Trills are always to the note above within the key signature, unless marked. Chances are that most of the melodic studies that we encounter will be Common Practice-meaning Classical era, so our only ornamentation concern will be with trills and turns. The chances of seeing an ascending trill with mordent as a termination are very rare.
Hope this was helpful.
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