Nederbeat
Nederbeat is a beat music or Nederpop.
Also recorded as Nederbiet.
In detail
It is associated with Netherlands. The record gives 1963 as its date of establishment or first appearance.
Sources
Each source is named with the standing the house places on it, so the evidence can be weighed rather than taken on trust.
reference work · Reputable secondary · Wikipedia
“Nederbeat”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q2639210: Nederbeat
Consult the source