Which Taccani to keep?

Alessandro Taccani - nm3502685

Sandro Taccani  - nm0846121

These are two entries for the same person.

Alessandro  has 9 credits, with one attribution as “S. Taccani”.

Sandro has 16 credits, with attributions as “Allesandro Taccani”, “S. Taccani”, “A. Taccani” and “S. Paola Taccani”

I propose to merge them, but which into which?

Using the web does not assist in determining the preferred name.

There is no Wikipedia page for either name, in English or Italian.

Alessandro has entries on Discogs, Allmusic and  Spotify. 

Sandro has entries on Allmusic, Secondhand songs and Spotify .  There is only one reference on Discogs  - ‘Sandro Taccani E La Sua Orchestra’, giving ‘Alessandro Taccani’ as his full name.

Should I 

1.     merge Alessandro into Sandro, or

2.     merge Sandro into Alessandro?