The bombardon in B flat or C, an octave lower than the euphonium, corresponds to the contrabass tuba in the orchestra.
For military purposes, this and the contrabass—the helicon—are circular.
Darwin had the contrabass played to an audience of sprouting garden-beans, in order to observe the effect of music on vegetation.
As a contrabass to the rhythm of the blacksmiths hammer, the booming murmur of the sea trembled across the summer air.
Down the shaded street the metallic rhythm of the anvil was breaking through the contrabass of the surf.
The tone was pleasant and full, but not powerful enough for the contrabass register in a military band.