---
title: MutableCollection Implementations
framework: coremidi
role: collectionGroup
role_heading: API Collection
path: coremidi/unsafemutablemidieventpacketpointer/mutablecollection-implementations
---

# MutableCollection Implementations

## Topics

### Subscripts

- [subscript(_:)](coremidi/unsafemutablemidieventpacketpointer/subscript(_:).md)