HLS media (Lossless music) not synching to iPhone

Hi dam2112,

Thanks for following up.

With Apple Music, manual syncing of music is only an option when Sync LIbrary is disabled. However, to add Apple Music tracks to your library from Mac, iCloud Music Library does need to be enabled.

Just to get a better understanding of your setup, can you check if Sync Library is enabled on either your Mac or iPhone? Reviewing resources regarding Apple

Music, Sync Library is intended to be enabled on all devices you are accessing your Apple Music on. This would sync your library automatically, but would not fully download your tracks. You would still have control over which tracks to download to your iPhone locally for storage management. Please review the note in the user guide below which implies automatic syncing using iCloud is expected for intended performance of Apple Music services.

Sync content between your Mac and iPhone or iPad

"Note: If you use iCloud Photos and Apple Music, your photos and music are synced automatically using iCloud. When you click Music or Photos, no options appear for syncing."

It seems that some Apple Music tracks that are downloaded to your Mac can be synced manually with iTunes, but this is partially a benefit of the Apple Music and iTunes Match services. We do notice an error when trying to manually sync tracks that are already downloaded in lossless on the Mac. The best workaround for this at the time would be to download these albums directly on the Music app on the iPhone and they will download based on your iPhone's audio settings.

We would suggest submitting feedback for this use case using the link below.

Product Feedback - Apple

Hope this helps. Take care for now.

You could try getting some lossless files from qobuz and see if you can sync them, once you buy the files you can download the music in ALAC or AIFF. If you are able to sync said files that could mean a bug when you try to sync the HLS media, although you can also try to find the HSL media on finder copy it and see if you can add it to the sync media on finder.

Hi dam2112,

Thanks for reaching out using Apple Support Communities. Here to help.

We understand you have questions regarding keeping Lossless music files downloaded onto your iPhone.

Lossless Audio is a feature of Apple Music. The ability to listen to Lossless quality on both devices should not be impacted by your choice not to use iCloud syncing. Your preferred audio quality for tracks played on your iPhone would actually be determined by a setting on the iPhone.

Listen to lossless music on iPhone

Head into Settings > Music > Audio Quality. Here you can designate preferences for using Lossless quality for downloaded tracks, or when streamed over Wi-Fi or Cellular. If you are wanting a Lossless version for music that has already been downloaded, simply remove the download from your device and then download it again.

Delete music and music videos

Hope this helps! Take care for now.

Hi dam2112,

Thanks for following up.

Our role here in communities is to provide the best available information, but we may not have all of the answers you are looking for. We have not found other reports of this behavior at this time so cannot say for sure if this is expected behavior. You may wish to contact Apple Support to start a direct case which may assist in furthering the investigation into this matter.

Get Support - Apple

Cheers!