| human | Q5 |
| P7902 | Deutsche Biographie (GND) ID | 134452291 |
| P227 | GND ID | 134452291 |
| P2671 | Google Knowledge Graph ID | /g/11gd3b2ctk |
| P213 | ISNI | 0000000120930780 |
| 0000000460281414 | ||
| P11249 | KBR person ID | 14435616 |
| P244 | Library of Congress authority ID | n88603522 |
| P8189 | National Library of Israel J9U ID | 987007330370605171 |
| P1006 | Nationale Thesaurus voor Auteursnamen ID | 074413619 |
| P691 | NL CR AUT ID | mzk2011647701 |
| P1207 | NUKAT ID | n2010163310 |
| P5504 | RISM ID | people/30029536 |
| P214 | VIAF ID | 172052191 |
| P108 | employer | University of Halle-Wittenberg | Q32120 |
| P101 | field of work | music | Q638 |
| music education | Q27908 | ||
| musicology | Q164204 | ||
| conducting | Q6989196 | ||
| P1412 | languages spoken, written or signed | German | Q188 |
| P106 | occupation | conductor | Q158852 |
| university teacher | Q1622272 | ||
| musicologist | Q14915627 | ||
| music educator | Q16145150 | ||
| P21 | sex or gender | male | Q6581097 |
| Willi Maertens | wikipedia |
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