He built thousands of organs , including for famous cathedrals and concert halls around LOCATION@1 , such as ORGANIZATION@1 , ORGANIZATION@2 , and The Royal PERSON@1 .

He built a very large number of organs , many of them for big cathedrals and concert halls in LOCATION@1 , such as ORGANIZATION@3 , ORGANIZATION@2 , and the Royal PERSON@1 .
