Are you really dissing the entire English indie music scene? You might not like it, but England has been creating musicians and defining whole genres non-stop since the 1960s (Beatles, Led Zeppelin, heavy metal, punk rock, psychedelic rock, jungle, the entire rave scene, The Prodigy, dnb, uk garage, the whole 2010s indie rock, dubstep, UK drill, etc.)

Japan seems to have a lot of small, very talented indie bands that basically are emulating and/or fusing Western genres together (jazz, funk, metal, etc.)