On the right
normally means two or more people sing songs (open mouth). But I think which is not the meaning here. I think that the two circles here are two big stones on the back of Body, so the body has to bend to keep the balance, which is the meaning of the character.
most of time, it means bow.
The character has the Body on left, so it is specific for bending body, not any other things. People bend or bow to show their respect when they meet in ancient China.
The small seal script for Bending is
The left is Body of small seal script.
The right part
is Bow (see Post 43), which is bending.
The clerical script for Bending is
The left is Body of clerical script, the right is the Bow of clerical script.
Its Pinyin is Gong1.