One thing that Korngold never really bothered with was period feeling, he stuck firmly to his late romantic style, but Kamen goes for a more quasi-authentic approach. Well, there are harpsichords in it anyway. The opening choral cue is surprisingly liturgical and it's something of a disappointment that this material doesn't recur. It has moments that sound like every passionate, but religious, choral cue you've ever heard, although I'd be hard pressed to cite a specific precedent. This being a period adventure, there are some more modern sounding action cues, although Kamen includes a few Purcell style trumpet trills and fortunately does nothing so offensive as to include any synths. It is perhaps a surprise that much of it is string led, especially the energetic The Cardinal's Coach which instantly conjures images of horse drawn carriages racing through misty forests.
The score goes faux (pre-)baroque in the quieter passages, but the song melody isn't really suitable for the style of the underscore and so doesn't really feature. There are enough fine moments to make The Three Musketeers worth hearing, but it just lacks that indefinable something to make it a great score. Overall, it's a better and more consistently entertaining listen than Robin Hood: Prince of Thieves; the basic thematic material is perhaps less striking, but the action doesn't give the feeling of a composer marking time, even if there are fewer obvious highlights. The track listing is notable for the authentic sounding subtitles - Lament, Rigadoon, Gavotte etc. - and if it were anyone but Kamen, I'd say it was the composer being pretentious, but I'm inclined to think the music was written to be authentic to the descriptions. Not perhaps Kamen at his finest, but as a composer disinclined to do anything but a professional job, still worth checking out.
Rating ~ 
Total Time ~ 42:45