Editing Lute (section)

=== Soundboard ===
[[File:Lute maker tools - 1293.jpg|thumb|A lute being made in a workshop]]
Lutes are made almost entirely of wood. The [[sound board (music)|soundboard]] is a teardrop-shaped thin flat plate of resonant wood (typically [[spruce]]). In all lutes the soundboard has a single (sometimes triple) decorated sound hole under the strings called the ''rose''. The sound hole is not open, but rather covered with a grille in the form of an intertwining vine or a decorative knot, carved directly out of the wood of the soundboard.

The geometry of the lute soundboard is relatively complex, involving a system of barring that places braces perpendicular to the strings at specific lengths along the overall length of the belly, the ends of which are angled to abut the ribs on either side for structural reasons. Robert Lundberg, in his book ''Historical Lute Construction'', suggests ancient builders placed bars according to whole-number ratios of the scale length and belly length. He further suggests the inward bend of the soundboard (the "belly scoop") is a deliberate adaptation by ancient builders to afford the lutenist's right hand more space between the strings and soundboard.

Soundboard thickness varies, but generally hovers between {{cvt|1.5|and(-)|2|mm|2}}. Some luthiers tune the belly as they build, removing mass and adapting bracing to produce desirable sonic results. The lute belly is almost never finished, but in some cases the luthier may size the top with a very thin coat of [[shellac]] or [[glair]] to help keep it clean. The belly joins directly to the rib, without a lining glued to the sides, and a cap and counter cap are glued to the inside and outside of the bottom end of the bowl to provide rigidity and increased gluing surface.

After joining the top to the sides, a half-binding is usually installed around the edge of the soundboard. The half-binding is approximately half the thickness of the soundboard and is usually made of a contrasting color wood. The rebate for the half-binding must be extremely precise to avoid compromising structural integrity.