Refresh your network connection by turning Airplane Mode on and off.
Downloads often stall if the "handshake" between your device and Apple fails. some songs won't download itunes
Confirm you are signed into the same Apple ID used to purchase the songs. Refresh your network connection by turning Airplane Mode
A hard reboot of your device and Wi-Fi router clears temporary cache that might be blocking the download queue. Detailed Troubleshooting Guide 1. Verify Connectivity and Account Status A hard reboot of your device and Wi-Fi
Sometimes iTunes "thinks" a song is already downloading, preventing a fresh attempt. iTunes for desktop won't download songs - Apple Community
Ensure you aren't on a restricted public Wi-Fi. If using cellular, verify that Cellular Data for Downloads is enabled in your settings.
In iTunes on your PC or Mac, go to the Account or Store menu and select Check for Available Downloads .