Hello, tarablackcat!

Thanks for reaching out to the Apple Support Communities! I know how important it is to be able to access previous purchases with your Apple ID. You will need to sign-in with the Apple ID you used to make the purchase and check out this article:

Download your past purchases

On an iPhone or iPod touch

1. Open the iTunes Store app.
2. At the bottom of the screen, tap More > Purchased > Music.
3. Tap "Not on This iPhone" or "Not on This iPod." 
4. Find the song that you want to download, then tap it. 
5. Tap the Download icon  to the right of the title. Your song downloads to your device.
   

On an iPad

1. Open the iTunes Store app.
2. Tap Purchased. 
3. Tap "Not on This iPad."
4. Find the song that you want to download, then tap it. 
5. Tap the Download icon  to the right of the title. Your song downloads to your device.

On a Mac or PC

1. Open iTunes.
2. If you’re not signed in, sign in with your Apple ID.
3. From the menu bar at the top of your computer screen or at the top of the iTunes window, choose Account > Purchased. If you're a member of a Family Sharing group, you might see Family Purchases instead of Purchased.
   If you’re using Windows and can’t see the menu bar, learn how to turn it on.
4. Click "Not in My Library" to view purchased content that isn't on your computer.
   
5. Find the item that you want to download, then click the Download icon  in the upper-right corner. Your song downloads to your library.

iTunes 12 for Windows: Download previous purchases from the iTunes Store

Cheers!