 Meyerbeer 's costly operas , requiring grand casts of leading singers , were gradually dropped from the repertoire in the early 20th century . They were banned in Germany from 1933 , and subsequently in subject countries , by the Nazi regime because the composer was Jewish , and this was a major factor in their further disappearance from the repertory . 
 Meyerbeer <a href='null_genetive' title='1'><mark>'s</mark></a>costly operas , requiring grand casts of leading singers , <a href='uninflect' title='2'><mark>were</mark></a> gradually dropped from the repertoire in the early 20th century . They <a href='uninflect' title='3'><mark>were</mark></a> banned in Germany from 1933 , and subsequently in subject countries , by the Nazi regime because the composer was Jewish , and this was a major factor in their further disappearance from the repertory . 
Meyerbeer  costly operas , requiring grand casts of leading singers , was gradually dropped from the repertoire in da early 20th century . They was banned in Germany from 1933 , and subsequently in subject countries , by the Nazi regime b/c the composer was Jewish , and this was a major factor in their further disappearance from tdarepertory .