Logic Pro X Tutorials : http://www.adsrsounds.com/category/logic-pro-tutorials/
Logic’s Brush tool is an often overlooked means to creating and shaping melodic lines in the Piano Roll.
In this tutorial, ADSR’s Stephen Ellestad walks through the basic function of the Brush as a melodic tool, working alongside Time and Pitch Quantize to paint melodic figures directly in the Piano Roll.