Carl Fischer 2015 105 Flesch Scale System Viola Mackie_ or you can even combine

or you can even combine the two -- all in a single compact pedal

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The coated surface on this head gives it more warmth and a rounder tone than clear heads

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Humes & Berg 121 Stonelined Non-Transposing French Horn Mute: The world standard of mutes

Carl Fischer 2015 105 Flesch Scale System Viola Mackie_ or you can even combine(Item: 798408002312) Carl Fischer 2015 105 Flesch Scale System Viola: The standard work for violin has been transcribed for viola by Charlotte Karman with the goal of helping the violist develop better overall technique through scale exercises in all major and minor keys. A proven body of material that will pay many rewards to the conscientious student.