Thanks in advanced!

Brownie  Vorgeschlagen von donshottype 

Perhaps hand-lettered for the band.
Looks like a hybrid of the letters in runic/ancient Greek fonts and something like Brownie. A light weight of Brownie is available at https://www.1001fonts.com/brownie-font.html
The double strokes evoke the tone of Rennie Mackintosh/Arts and Crafts letters.