Quick answer
Transfer to your phone, import and play.
AirDrop audio files from your Mac to your iPhone, check where they were saved, then import them into TuneTrace. Play them locally without keeping your computer connected.
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Step by step
4 stepsMake both devices discoverable
Keep the Mac and iPhone nearby with Wi-Fi and Bluetooth on. In iPhone Control Center, check that AirDrop allows this Mac to send files.
Send the audio from your Mac
Select MP3 or M4A files in Finder, choose “Share → AirDrop” and select your iPhone. Try one file before sending a larger batch.
Accept and locate the files on iPhone
Accept the transfer if prompted. Devices using the same Apple Account usually accept automatically. If a preview or app picker opens, save to Files, then find and play the audio.
Import into TuneTrace
Use the top-left import button in Library and select the received files. Once they appear, play them or add them to a playlist.
Find your songs in the Library after import 
Play local tracks without a computer connection
Common questions
Why is my iPhone missing from AirDrop?
Check Wi-Fi, Bluetooth, distance and the iPhone’s AirDrop receiving settings. They must allow the sender to connect.
Can a Windows computer use AirDrop?
AirDrop works between Apple devices. From Windows, use iCloud Drive or another method to put audio in Files, then import it.
Why is the transferred song not in TuneTrace yet?
AirDrop transfers the file. You still need to import it from TuneTrace’s Library.
The destination for AirDrop files depends on the file type and iOS version. Check where the received file was saved.