Piano

A piano comprising a main body, said main body being-divided into two parts, one part being a sonic-vibration-generating mechanism of an upstream side made up of a keyboard mechanism, a pedal mechanism, an action mechanism, a damper mechanism, and legs that functions as a source to produce energy to strike strings and another part being a sonic-vibration-generating mechanism of a downstream side made up of tuning pins, hitch-pins, a bridge, a soundboard, ribs, a frame, the strings, and a lid that receives the energy to strike the strings transmitted from said sonic-vibration-generating mechanism of the upstream side, generates sonic vibrations and emits into the air the energy of thus generated sonic vibrations as sonic waves, in rows at certain uniform intervals are allocated a plural number of either weight-supporting elements of a point-support type or a line-support type on a support frame installed in said sonic-vibration-generating mechanism of the upstream side, and, with these weight-supporting elements in between, said sonic-vibration-generating mechanism of the downstream side is placed in a layered state onto said sonic-vibration-generating mechanism of the upstream side.