This is a complete collection of major scale studies in the keys of G, D, A, E, C, F and Bb. The included preview is a few of the scales in the key of G only. Each key contains 115 different scale exercises for the mariachi ensemble. Violin, trumpet, harp, armonía parts, and director's score are included.Each collection 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 qua