AirDrop allows Apple devices to share content without a network connection. The data is exchanged via Bluetooth or Wi-Fi. Song One offers the option to forward a song or an entire set via AirDrop.
Select the song (or the set) you wish to forward from your library with a long tap/right click.
A pop-up menu appears:
Select 'AirDrop Song' (or 'AirDrop Set') from the pop-up menu.
A pop-up window appears:
Tap/click on the AirDrop icon and select one or more devices to forward the song (or the set).
The recipient will be notified with the option to accept or deny your AirDrop file. (See AirDrop Guidelines if you are unable to connect.)
On iOS the song (or the set) is automatically added to the recipient's song catalog once the AirDrop has been accepted.
On macOS the accepted file is saved to the recipient's AirDrop/Download folder and needs to be double-clicked on to be added to the song catalog.
A dialog appears if one or more received songs already exist in the recipient's song catalog:
Select 'Skip' to add the new songs while keeping the songs already existing in your catalog unchanged.
Select 'Replace' to also update the existing songs. (Note: Songs may be forwarded with limited access.)
AirDrop offers an option in its settings/preferences to restrict AirDrops to people listed in Apple's 'Contacts' app.
As the sender make sure that either your Apple ID's email address or your mobile number is listed in the recipient's 'Contacts' app. (Alternatively ask the recipient to change the AirDrop settings from 'Contacts Only' to 'Everyone'.)