I have a recording of the "old" CDG
airport chime that is very clear. I'd be happy to send it to you.
The new CDG
chime isn't bad, it's just not as good. If you visit the Aeroports de Paris website and click on "notre identite" you can find it under "identite sonore." They play a short version of it. It's *way* better than the new chime on board SNCF trains, which sounds like a woman singing scat music.
My all-time favorite is the chime played in the Frankfurt Hauptbahnhof S-Bahn station. I shot a quick video down there back in November just so I could get a recording of the chime.