Praeger claimed to be an early advocate of Wagner's music, having written the first article on Wagner in the English press in 1845, after hearing the overture to
Tannhäuser in Germany. In fact, the article was on Wagner's earlier opera,
Rienzi. Praeger learned much about Wagner in correspondence with their mutual friend
August Röckel, but his published journalism shows him to have been sceptical about the music of the "
New German School" (which included Wagner,
Hector Berlioz and
Franz Liszt) as late as 1854, in which year he claimed to have been a leader amongst those who persuaded the
Philharmonic Society to invite Wagner to London to conduct their 1855 season. However, in March 1855, just before Wagner arrived in London, Praeger wrote to
George Hogarth (the Secretary of the Society) that he was not a Wagnerite and had never heard any of Wagner's operas. It was in London that Praeger and Wagner actually met for the first time. In his autobiography
Mein Leben, Wagner explains how he was introduced to Praeger, via correspondence, by the Röckel family, and how Praeger put him up on his first night in London. Praeger later accompanied him on visits to various musical notables, including the conductor
Sir Michael Costa and the violinist
Prosper Sainton (who was in fact the prime mover of Wagner's appointment in London). Wagner describes Praeger patronisingly as "an unusually good-natured fellow, though of an excitability insufficiently balanced by his standard of culture". Together they visited the
pantomime in London and went on trips to
Brighton and
Gravesend. Although Praeger sought to be helpful to Wagner during the London season, he may in fact have contributed to the poor reception of Wagner by leading English critics, such as J. W. Davison of
The Times, by writing an article in the American
Musical World looking forward to the uproar that the music of this "ultra-red republican" would cause in "the musical world of this classical, staid, sober, proper, exclusive, conservative London". Wagner became godfather to one of Praeger's sons, Richard Wagner Charles Henry Praeger (b. 1855). Praeger remained in correspondence with Wagner for some years thereafter, and met with him on several occasions. These included stays with Wagner and his wife
Minna in
Zürich in July 1857 and with Wagner and his second wife
Cosima at
Tribschen near
Lucerne in the summer of 1871. Praeger saw Wagner at the time of the abortive 1861 Paris production of
Tannhäuser, and also saw him at the 1882
Bayreuth Festival. By this time, however, in Praeger's own words, "The world accepted [Wagner] as one of its great men" and Praeger no longer had any part in his life. ==
Wagner As I Knew Him==