Hello PaulioDB,
Welcome to Apple Support Communities. We understand having a question about using iTunes Match on your PC, and we'd be happy to get your questions answered.
"To access your songs and playlists on other devices, turn on Sync Library on all of your devices.
When you sign in with the Apple ID that you use with iTunes Match on your iPhone, iPad, iPod touch, Mac, or PC, you associate that device with your account and get access to your music library.
It might take some time for iTunes Match to upload your music from your Mac or PC. If you don't see your music on another device right away, check back later. When iTunes Match is finished uploading your music library, Download the Download icon appears next to music that's been uploaded."
Subscribe to iTunes Match
We hope this information is useful. Kind regards.