Hello suzyq1004,
Thank you for using Apple Support Communities.
I see that you are having issues locating a song that you have previously purchased from the iTunes Store. This article will walk you through locating, and if necessary downloading, previous purchases from the iTunes Store:
Download your past purchases
If you see a message that says, "This device is associated with another Apple ID. You cannot associate this device with another Apple ID for [number] days," you might need to wait to download your purchases. Learn more about associated devices.
Check to see if the purchases you're looking for are hidden. If your purchases are hidden, you might not see them even after you follow the steps below. Learn how to unhide purchases.
See if the content is available for redownload. Previously purchased items might not be available if they're no longer on the iTunes Store. Also, make sure that you’re in a country where you can redownload items. If you changed your Apple ID from one country to another, you can’t download items you purchased in a previous country.
Some of your purchases might be in a queue to download. Learn how to check for available downloads. You can have all purchases automatically download to a device or your computer if you turn on automatic downloads.
If your download was interrupted, learn how to resume the download.
If you can't find the item that you purchased in the iTunes Store, report a problem with the item. You can report a problem with a purchase made within the last 90 days. If you have a problem with an older purchase, contact iTunes Store support.
After you download your purchases, back up your iTunes library. Previous purchases might be unavailable if they've been refunded or aren't on the iTunes Store.
It will also provide links if the steps in that article do not help.
Best regards.
