This book compiles the scale studies of the targeted keys of G, D, and A Major, and A, E, and D Minor from the Progressive Armonia Studies Level 1 book in one resource. Each major key is a collection of 115 different scale exercises and each harmonic minor key is a collection of 85 exercises for the mariachi ensemble. Each key starts in the time signature of 4/4 followed by 3/4 and ends with scales in 2/4. Scales include rhythms in whole notes, half notes, dotted half notes, quarter notes, dotted quarter notes, eighth notes, dotted eighth notes, sixteenth notes, quarter notes, eighth note triplets, and syncopated patterns in each time signature. For the mariachi ensemble, the following styles are presented; lenta, bolero, bolero ritmico, bolero ranchero, danzon, valseada, son, huapango, son variation, joropo, joropo variation, son jarocho, cumbia, and corrida. The harpist will practice scales, alternating left and right-hand parts and chords to the different rhythms.