Downloading from iMatch

If you subscribed to iTunes Match, and uploaded all your music to it before the hard drive died, you can open iTunes and download your music directly form the music tab. It should appear in the music section if you are signed in to your Apple ID, and will have a small cloud icon next to it.

Wherever your iTunes library is pointing is where it will save the music to.

iTunes for Mac: Moving your iTunes Media folder - Apple Support

iTunes Match: Understanding the iCloud Status icons - Apple Support

The Error icon means the files are corrupt, or were not uploaded properly to iTunes match.

If they where not uploaded properly before, there's nothing you can do.

Resolve issues with iTunes Match - Apple Support

If they were working correctly before, but aren't now, you may need to contact iTunes Support.