Hello Raymond Fox,
Thanks for using Apple Support Communities.
For more information on this, take a look at:
iTunes Match on iPhone, iPad, or iPod touch
If you'd like to download the song or playlist to your device, simply tap the download button to the right of the song or at the bottom of the playlist.
Best of luck,
Thank you for using the Apple Support Community. Due to the nature of your issue or question you may find more information by using another one of Apple's support resources - https://expresslane.apple.com/GetproductgroupList.action.