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# globalMetaParameters

A dictionary of metaparameters that all sound event assets share.

```
var globalMetaParameters: [String : PHASEMetaParameter] { get }
```

## Discussion

When you change a value for a metaparameter in this dictionary, every sound event attached to the metaparameter observes the change. The dictionary key is the [`identifier`](/documentation/PHASE/PHASEMetaParameter/identifier) of the [`PHASEMetaParameterDefinition`](/documentation/PHASE/PHASEMetaParameterDefinition) you pass into [`registerGlobalMetaParameter(metaParameterDefinition:)`](/documentation/PHASE/PHASEAssetRegistry/registerGlobalMetaParameter(metaParameterDefinition:)).

> Tip:
> To adjust a value for a single sound event, access the metaparameter through the ``doc://com.apple.phase/documentation/PHASE/PHASESoundEvent/metaParameters`` property instead.

---

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