Dr Wright has a website posting articles on classical composers as well as classical performers. I have found it quite fascinating reading because he brings to light a lot of unsavoury aspects of various composer's lives. For instance, Sir Edward Elgar gets a very bad press. Now, I happen to like a bit of Elgar- mostly the symphonies and Alassio (In The South) but find the Enigma Variations a bit tedious and have never yet got through the symphonic poem 'Falstaff'. As for 'Gerontius' I have tried many times to like it but have now (after reading David Wright's comments) feel justified in giving up on it.
The composer who gets the worst press of all is Benjamin Britten - the most odious man he had ever met. Now that one had me hopping from one foot to the other. There's a lot of Britten's music I like but Dr Wright's comments tend to make me see his output in a rather different light than before so there's a massive reassessment going on.
What I don't like about Dr Wright's writings is that he seems to be a little homophobic (though it's odd that he calls Bruckner a spiritual man and makes no mention of his homosexuality) and also rather repetitive. The phrase 'a real man' keeps cropping up in the biographies of heterosexual composers. And several times he reiterates that Walton thought that Shostakovich was the greatest composer of the last century (something I wouldn't try to deny).
Anyway, Dr Wright's writings are very interesting and persuasive if not a little contentious, but beware- they can really distort your perception on the music you love.