Chinese guitarist Liying Zhu plays Una limosna por el amor de Dios (El Ultimo Tremolo) by Paraguayan composer Agustìn Barrios Mangorè (1885-1944). This comes via the excellent D’Addario Foundation on their Youtube channel. I love her playing, so clean yet such good musicality. You can learn more about her via her D’Addario bio page: “Born in Kunming city of Yunnan province in China. Liying started to learn classical guitar when she was a child and immediately fell in love with this charming instrument. She began to study with Professor Chen Zhi, the leading guitar professor in China at her age of 11.” Out of interest, last November I posted another video of Liying Zhu playing this same Barrios piece.
Also see my page with lessons and repertoire: Tremolo for Classical Guitar