The Thomastik Dominant Pro Viola D string is a continuation of the popular Dominant Pro violin string. The D-string's job is to create a homogeneous sound with the A-string and a harmonious bridge to the G-string. The No. DP22 viola D string succeeds at this with its easy response, pronounced brilliance and assertiveness, as well as its dark basic timbre with mezzo-soprano components typical for the viola.