A bell is described having the first at least three or more frequencies substantially
in harmonic sequence. A method for designing such a bell is also disclosed. An
optimization procedure is described wherein an initial bell shape is modified until
the first at least three or more frequencies are substantially in an harmonic sequence.
An asymmetric bell is also described wherein a meridonal cross-section of the side
portion is substantially geometrically similar to a cross-section having: 1) an
outer line formed by fitting an arc of a circle to the three described points of
the nodes and an inner line formed by fitting a line to the described points of
the nodes; or 2) having an outer line formed by joining a straight line to the
two described points of the nodes and an inner line formed by fitting a line to
the described points of the nodes.
