Walter Meyer wrote:

>How out of date can a biography of Beethoven (who died in 1827 after
>having lived a relatively open life), which was revised in 1967, be?

Very.  But it's still worth reading.

>How much significant information on Beethoven could researchers have
>discovered in the last 34 years that had remained unknown for the previous
>140?

A great lot.  The last few decades brought a lot of changes in musicology,
including research in two areas that were practically unknown before:
paper type and watermarks and the importance of non-autograph manuscripts
made by professional copyists.  Both are very important for the research
on dating and authenticity of works.

-Margaret Mikulska
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