[FEAT] logic of the commercial links

[coulonnus]

I concede the commercial link present with each score can be constructive,
but its logic gives off-topic results because it returns any result that
contains the first and last name of the composer somewhere in the article.

Example: Schulhoff, Julius, l'Ondine: The first result, Editon Lockenhaus,
contains Julius Berger and Erwin Schulhoff. This is not what I'm looking for.

Could you please restrict the results to articles with "Julius Schulhoff" _or_
"Schulhoff, Julius"?
Coulonnus

[coulonnus]

Well, it seems this logic has automagically improved! Thanks!

[imslp]

The Amazon link function will automatically search "<last name>, <first name>, <composition title>" first, and if this search returns no results, will search "<last name>, <first name>". I'm not sure Amazon has Google's function of grouping words (only match if words are together), and it may break when the composer has a middle name, for example.

Generally, if you get rubbish results with the function, it means that Amazon probably does not have what you are looking for, as I believe it will match consecutive words first. Amazon's search function is generally pretty intelligent in my experience (or else they won't get any money).

[coulonnus]

Then let me thank the Amazon chaps for this improvement!