Trumpet: Difference between revisions
m →19edo trumpets: Rename section "19edo trumpets" to "The Microtonal Trumpet" |
m →Other methods: Small rearranging |
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=== Quartertones === | === Quartertones === | ||
Quartertones for most notes can be approximated well with alternative fingerings and the third valve slide. | |||
==== Retuning valves ==== | |||
Quartertones for most notes can be approximated well with alternative fingerings and the third valve slide. | |||
Refer to the fingering chart (starting at middle G and ascending): | Refer to the fingering chart (starting at middle G and ascending): | ||
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The (S) signifies that use of the third valve slide is necessary. | The (S) signifies that use of the third valve slide is necessary. | ||
=== | === General xenharmonic music === | ||
[[File:Adams A4 QT with adjusted third slide.jpg|alt=Adams A4 Quartertone with an adjusted third valve tubing for 19edo.|thumb|308x308px|Adams A4 Quartertone with an adjusted third valve tubing for 19edo.]] | [[File:Adams A4 QT with adjusted third slide.jpg|alt=Adams A4 Quartertone with an adjusted third valve tubing for 19edo.|thumb|308x308px|Adams A4 Quartertone with an adjusted third valve tubing for 19edo.]] | ||
==== Retuning valves ==== | ==== Retuning valves ==== | ||
On most trumpets, you can play [[edo]]s with fewer divisions than 12edo by retuning each valve slide individually. Because each valve's tubing is adjustable, you can lengthen them to lower the pitch by the number of cents corresponding to the semitones targeted by the valve. | On most trumpets, you can play [[edo]]s with fewer divisions than 12edo by retuning each valve slide individually. Because each valve's tubing is adjustable, you can lengthen them to lower the pitch by the number of cents corresponding to the semitones targeted by the valve. This method can be done similarly on quartertone trumpets; however, usually, the quartertone valve tubing (50 cents) cannot be adjusted. | ||
For instance, [[10edo]]'s semitone is 120 cents; to retune a standard trumpet to | For instance, [[10edo]]'s semitone is 120 cents; to retune a standard trumpet from 12edo to 10edo, you could adjust the first valve (two semitones) from 200 cents to 240, the second valve (one semitone) from 100 cents to 120, and the third valve (three semitones) from 300 cents to 360. | ||
Keep in mind that this retuning method grows less accurate in the lower register, because trumpets are built on the [[harmonic series]]. Tuning systems with, for instance, a poor [[3/2]] (fifth), will now have a perfect 3/2 when played on the trumpet; similarly, notes between low C and middle G will be offsets of that perfect 3/2. This creates a sort of limited, quasi-[[just intonation]] sound (as brass instruments already are). You can fix this in real-time by adjusting your embouchure, "lipping" the notes. | |||
==== Alternative fingerings ==== | |||
There are several fingering combinations for the trumpet that are not traditionally used simply because they do not approximate any pitch in 12edo. These notes can be used as a very limited set of additional pitches for xenharmonic music. These have limited functionality, but can be seen featured in small works, such as on Oli Parker's YouTube video, [https://www.youtube.com/watch?v=xQxHsx6JnJY ''The Xenharmonic Trumpet'']. | |||
==== Lipping ==== | ==== Lipping ==== |