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Matthew Coe
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Xylophone bars are tuned with the first partial being an octave and a fifth above the fundamental. This brightens the sound of the instrument and gives it the characteristic "xylophone" sound.
For marimbas, generally the tuning is fundamental, two octaves above the fundamental, and three octaves and a major third above the fundamental. Some manufacturers today even tune more partials than that in the lowest bars. This is especially true when using resonators that are not round, since anything besides round resonators brings out the overtones more clearly.(which is undesireable, especially if the overtones are not tuned) However, any resonator does indeed amplify more than just the fundamental pitch, and this is one of many reasons why the bars are tuned in this manner. Another big reason for tuning the partials is that it frees up the bar to ring longer if everything is in tune correctly, plus it just sounds much nicer.
Hope that helps clear things up for you somewhat.
-Matt
www.coepercussion.com
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[1018]Re:Tuning of Marimba keys (505 reads)
[1011]Tuning of Marimba keys <Wilfred>