American Popular Piano Skills - Level 5. Each book rounds out the comprehensive course of study, paced to enhance progress in the corresponding Repertoire & Etudes albums, the module structure ensures a smooth intergration of Ear-Training, Sight reading & Technic. Ear training; reinforces the aural development, Sight-reading time effective module structure leads to regular practice,Technic: provides a structured and measured approach. Note - Repertoire book required for CD.