---
title: kSequenceTrackProperty_TimeResolution
framework: audiotoolbox
role: symbol
role_heading: Global Variable
path: audiotoolbox/ksequencetrackproperty_timeresolution
---

# kSequenceTrackProperty_TimeResolution

The time resolution for a sequence of music events. For example, this value can indicate the time resolution that was specified by the MIDI file used to construct a sequence.

## Declaration

```swift
var kSequenceTrackProperty_TimeResolution: UInt32 { get }
```

## Discussion

Discussion To use a specific time resolution when writing a new file, retrieve this value and then specify it when calling the MusicSequenceFileCreate(_:_:_:_:_:) function. This value does not directly determine playback rate for a music track, but rather it kSequenceTrackProperty_TimeResolution is set in two possible ways: If you create a music sequence programmatically, the value is set to 480. If you create a music sequence from a MIDI file, the value is set to the time resolution specified in the MIDI file. A read-only SInt16 value that is valid only for a tempo track.

## See Also

### Constants

- [kSequenceTrackProperty_LoopInfo](audiotoolbox/ksequencetrackproperty_loopinfo.md)
- [kSequenceTrackProperty_OffsetTime](audiotoolbox/ksequencetrackproperty_offsettime.md)
- [kSequenceTrackProperty_MuteStatus](audiotoolbox/ksequencetrackproperty_mutestatus.md)
- [kSequenceTrackProperty_SoloStatus](audiotoolbox/ksequencetrackproperty_solostatus.md)
- [kSequenceTrackProperty_AutomatedParameters](audiotoolbox/ksequencetrackproperty_automatedparameters.md)
- [kSequenceTrackProperty_TrackLength](audiotoolbox/ksequencetrackproperty_tracklength.md)