Opeth - The Grand Conjuration Main Riff (guitar) bass tab

I know this is a guitartab but I can not log in on tabs-database so

I submitted it one here to get points.

Drop-D

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-1-0-4-5-4-7-12-10-6-5-4-7-------

-1-0-4-5-4-7-12-10-6-5-4-7-------