Computation of number of albums ...

[lyapounov]

Thanks all of you for your precious contributions.

Let me tell you another problem: Symphony n°1 is sometimes the album title.

Beethoven? Brahms ? Mahler ? Shostakovich ? etc...

OK, let us add the composer. So I need to correct the title to:
Beethoven - Symphony n°1

Agh: Barenboim ? Gardiner ? Haitink ? Karajan ? Paavo Järvi ??

OK, let us then add the conductor.

Beethoven - Symphony n°1, Karajan

Ah: Karajan 1951-1955 ? 1963 ? 1977 ?

OK, let us refine.

Beethoven - Symphony n°1, Karajan - 1963

Agh: the flac version, or the SACD ?

Beethoven - Symphony n°1, Karajan - 1963 (SACD)

Etc...
On 6000+ albums

(PS of course, there are often more than one symphony per CD. But this does not change the burden of retagging. And honestly, even the files which I buy on Qobuz have, many times, a very ugly tagging)