iTunes Match isn't intended for that, nor necessary. Any song you've already puchased from the iTunes Store can simply be downloaded again as required. iTunes match is only applicable to songs in iTunes which you've ripped from your CDs or purchased elsewhere (e.g. Amazon).
iTunes determines which songs in your collection are available in the iTunes Store. Any music with a match is automatically added to iCloud for you to listen to anytime, on any device. Since there are more than 26 million songs in the iTunes Store, chances are your music is already in iCloud.3 And for the few songs that aren’t, iTunes uploads what it can’t match (which is much faster than uploading your entire music library). Even better, all the music iTunes matches plays back from iCloud at 256-Kbps AAC DRM-free quality — even if your original copy was of lower quality.
Thank you for your reply. I'm still having difficulties, e.g. imatch has rejected all tracks under a certain level of kbps, and all of my spoken work tracks are low in audio quality, doesn't mean there not good to listen to? I'm tempted to just go back to my ipod, it's a shame that a track just can't be accepted as a track. The digital age has gone too far.