The fret guts of renaissance lute ware exchanged today.
Brightness to the sound of lute has been lost by days and months.
Finally some wear of the fret guts can lead to buzzing between the string and the nut.
Although I also tried readjustment by paper shim, it seems to be out of range that can be managed by this method.
The lute with low action has severe adjustment of the fret guts.
Then, I exchanged the fret guts today.
Although it is exaggerated if I say the lute was re-born. He has recovered spirits.