[Grammar] had been opened or had opened?

[cherry maltezidou]

Once we (had) arrived in the city center, we went straight to the new music shop, which had been opened by a local singer a few weeks before.

Can we use had opened ​instead?

 

[Rover_KE]

No. That wouldn't make sense unless you deleted 'by a local singer'.

 

[GoesStation]

Don't use the had you've marked with parentheses ("brackets" in BrE).