Members: Johannes Hertrich, Gabriel Hertrich

from their Bandcamp page:
Attune was founded by the brothers Johannes and Gabriel Hertrich in 2011. The duo originates from Geisenhausen (Germany), which is also the home of Pandoras.Box and Frittenbude. The style of Attune can be assigned to the downtempo- or trip-hop genre, but also includes nu jazz-, electronica- or alternative elements. "Home Again", the debut album of Attune, was released on June 30, 2012.