| Tonsystem | pitch space |
| Typsystem | type system |
| Notensystem | stave |
| Sternsystem | star system |
| Soundsystem | sound system |
| Exosystem | exosystem |
| IT-System | IT system |
| Subsystem | subsystem |
| System | system structure |
| Ökosystem | ecosystem |
| Tonem | toneme |
| Tonsetzer | composer |
| Tonsille | tonsil |
| Tonstein | claystone |
| Tonleiter | scale |
| Tonsilbe | nuclear stress |
| Konsistenz | consistency |
| Konsorte | consortium member |
| Monster | monster |
| konsistent | consistent |