Trumpet: Difference between revisions

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====Retuning valves ====

[[File:Adams A4 QT with adjusted third slide.jpg|alt=Adams A4 Quartertone with an adjusted third valve tubing for 19edo.|thumb|~~217x217px~~|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|345x345px|Adams A4 Quartertone with an adjusted third valve tubing for 19edo.]]

On most trumpets, you can play EDOs ~~lower~~ than 12 by retuning each valve slide. Because each valve's tubing is adjustable, you can lengthen ~~the tubing so each valve lowers~~ the pitch by ~~however many cents are in~~ the number of semitones the valve ~~targets~~. For ~~an example~~, [[10edo]]'s semitone is 120 cents; adjust the ~~second~~ valve (~~one semitone~~) from ~~100~~ cents to ~~120~~, the ~~first~~ valve (~~two semitones~~) from ~~200~~ cents to ~~240~~, and the third valve (three semitones) from 300 cents to 360.

On most trumpets, you can play EDOs 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.

For instance, [[10edo]]'s semitone is 120 cents; to retune a standard trumpet to 12edo, 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.

This method can be done similarly on quartertone trumpets; however, usually, the quartertone valve tubing (50 cents) cannot be adjusted.

Keep in mind that this retuning ~~is often much~~ less accurate the lower ~~your pitch is~~, because trumpets are built on the [[harmonic series]] and tuning systems with a poor 3/2 will now have a perfect 3/2, and notes ~~below~~ middle G will be ~~based on~~ that perfect 3/2. You can fix this in real-time by "lipping" the notes.

Keep in mind that this retuning method grows less accurate in the lower register, because trumpets are built on the [[harmonic series]] and tuning systems with a poor [[3/2]] (fifth) will now have a perfect 3/2, and notes between low C and middle G will be offsets of that perfect 3/2. You can fix this in real-time by adjusting your embouchure, "lipping" the notes.

==== Lipping====

@@ Line 128: / Line 128: @@
 ====Retuning valves ====
-[[File:Adams A4 QT with adjusted third slide.jpg|alt=Adams A4 Quartertone with an adjusted third valve tubing for 19edo.|thumb|217x217px|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|345x345px|Adams A4 Quartertone with an adjusted third valve tubing for 19edo.]]
-On most trumpets, you can play EDOs lower than 12 by retuning each valve slide. Because each valve's tubing is adjustable, you can lengthen the tubing so each valve lowers the pitch by however many cents are in the number of semitones the valve targets. For an example, [[10edo]]'s semitone is 120 cents; adjust the second valve (one semitone) from 100 cents to 120, the first valve (two semitones) from 200 cents to 240, and the third valve (three semitones) from 300 cents to 360.
+On most trumpets, you can play EDOs 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.
+For instance, [[10edo]]'s semitone is 120 cents; to retune a standard trumpet to 12edo, 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.
 This method can be done similarly on quartertone trumpets; however, usually, the quartertone valve tubing (50 cents) cannot be adjusted.
-Keep in mind that this retuning is often much less accurate the lower your pitch is, because trumpets are built on the [[harmonic series]] and tuning systems with a poor 3/2 will now have a perfect 3/2, and notes below middle G will be based on that perfect 3/2. You can fix this in real-time by "lipping" the notes.
+Keep in mind that this retuning method grows less accurate in the lower register, because trumpets are built on the [[harmonic series]] and tuning systems with a poor [[3/2]] (fifth) will now have a perfect 3/2, and notes between low C and middle G will be offsets of that perfect 3/2. You can fix this in real-time by adjusting your embouchure, "lipping" the notes.
 ==== Lipping====