To send GarageBand songs through iMessage, follow these steps:
1. Launch GarageBand: Open the GarageBand app on your iPhone or iPad. If you don't have GarageBand installed, you can download it from the App Store.
2. Create or open a project: Start a new project or open an existing one that contains the song you want to send.
3. Export your project: Once you have the project open, tap on the three dots in the top-right corner of the screen to access the menu. From there, select "Share" and then "Song."
4. Choose export options: You'll be presented with different export options. Select the format you prefer, such as GarageBand, AAC, or MP3, depending on the compatibility and quality you desire.
5. Share via iMessage: After selecting the export format, tap on the iMessage icon. This will open the Messages app on your device.
6. Select recipients: Choose the recipient(s) you want to send the GarageBand song to. You can select multiple contacts if needed.
7. Send the file: Hit the send button to transmit the exported GarageBand song via iMessage. The recipient(s) will receive a message containing the file, which they can then download and listen to.
8. Troubleshooting: If you encounter any issues, ensure that you have a stable internet connection, sufficient storage space on your device, and relevant permissions enabled for the GarageBand app and iMessage.
Remember, these steps are based on the assumption that you're using an iPhone or iPad with the latest iOS version (iOS 16) and the latest version of GarageBand.