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These tone bars give the whole notes
in an octave when they are dropped onto a hard floor. Unlike the bars of
a xylophone, these all have the same length, but have different thicknesses,
with the thinner bars having the higher frequencies. When they are dropped,
they flex back and forth, with the nodes 22.4% of the way in from
the ends. This set was made by Max Kohl of Chemnitz, Germany, and is in the Greenslade Collection. |