Anatomy of Shells Flashcards
Sound characteristics of segmented shells
Similar to stave shells, they have a short sustain and higher and more focused fundamental pitch.
Sonic characteristics of “spun” shells
Spun shells are brighter and more sensitive and vibrant with a long sustain and lower fundamental pitch.
What is the sound characteristics of steam bent?
Vibrant characteristic sound with long
sustain and true fundamental pitch.
What is the most important part of the drum shell’s tonal qualities?
The shape of the bearing edge is absolutely the most important
part of a drum shell’s tonal qualities.
Sonic characteristics of “Bent” type metal shells
Bent drums are also bright in tone, but because of the welding, have a shorter sustain than the other types of metal shells.
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Lug
Receiving end of the tuning rods on the hoop.
Spændehus
What is a “spun” type shell?
Spun shells are made from a single piece of metal that is spun and pressed into a cylinder
Which shell composition has the most true sound to the nature of the wood being used?
Steam-bent
As it is one piece of wood with minimal amounts of glue.
Carved or core is similar
What does shell diameter determine?
Shell diameter determines pitch range. Smaller is higher, larger is lower.
Segmented shells
Segmented shells are often made from stacking
and gluing rings of wood cut from a single piece of wood.
What is the qualities of shallower shells?
Shallower shells have a longer sustain, lower
attack (because of the increased sustain) and higher tuning
range.
Does the bearing edge shape and amount of contact affect the shell’s contribution to sound?
Yes absolutely!
Shell contribution depends on bearing edge shape and amount
of contact with the head.
What qualities does thicker shells have?
Thicker shells
increases volume and raises fundamental pitch.
Sound characteristics of “Carved” or “Core” shells
Carved shells have a long sustain, true tone and higher fundamental pitch. But very expensive
What is a “Cast” type shell?
Cast shells are made from a cast metal cylinder that is shaved into a precise thickness.
What is a “Bent” type shell?
Bent shells are made from a sheet of metal that is formed by bending the metal around a cylinder form and then welded to retain the shape
Cheapest type of metal shell
Stave shells
Stave shells are made from vertical pieces of wood that are cut to length, glued into a cylindrical shape
What does thickness of the shell determine?
Thickness of shell determines volume and fundamental
pitch.
Which type of bearing edges have the least amount of shell contribution?
Single cut bearing edges (like in a DW collector’s series) have the
least amount of shell contribution and the sound is mostly from
the head selection.
What is the sound characteristics of plywood?
Long sustain with plenty of volume, due to its rigidity and density.
Which bearing edges transfer the most energy to the shell?
Bearing edges centered on the shell allow for the most transfer
of energy to the shell.
Sonic characteristics of “Cast” shells
Darker and louder
with a long sustain and higher fundamental pitch.
commonly found in snare drums
such as the Tama Bell Brass
Sonic qualities of Steel
Bright and clear highs, average midrange and low end. All-purpose.
Sound characteristics of “Stave” Shells
Short sustain and higher fundamental pitch.
Stave drums will be louder, are more responsive and can be tuned lower
*due to the orientation of the wood and the
fact that it remains in its natural state, *
Steam-bent
Steam bent shells are made from a single piece of wood that
is treated and bent into shape with steam, then glued to hold
shape.
What is the qualities of deeper shells?
Deeper shells have a shorter sustain, more attack and
lower tuning range.
What does shell depth determine?
Shell depth determines fundamental tuning range, sustain, and
attack/punch.
Deeper is lower, longer and more attack, shallow is higher, shorter and less attack
What qualities does thinner shells have?
Thinner shells are quieter and has a lower fundamental.
“As they vibrate more freely and are less rigid”
What is the qualities of round bearing edges?
Round edges reduce overtones and increase energy dissipation
into the shell, reducing attack, sustain and volume.
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Hoop
Reife
