# MusicSequenceBarBeatTimeToBeats(_:_:_:) Formats a music sequence’s bar-beat time to its beat time. ``` func MusicSequenceBarBeatTimeToBeats(_ inSequence: MusicSequence, _ inBarBeatTime: UnsafePointer, _ outBeats: UnsafeMutablePointer) -> OSStatus ``` ## Parameters `inSequence` The music sequence that you want the beat count for. `inBarBeatTime` The bar-beat time to be represented as beats. `outBeats` On output, the music sequence’s beat time. ## Return Value A result code. ## Discussion The sequence’s tempo track time signature events are used to to calculate the bar-beat representation. If there are no Time Sig events added to the sequence 4/4 is assumed. A time signature event is a MIDI Meta Event as specified for MIDI files. Refer to `AudioToolbox/CAClock.h` for more information. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)