This is a collection of 115 different scale exercises in the key of C Major for the mariachi ensemble. Violin, trumpet, harp, armonía parts, and director's score are included.The 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 quarter notes, eighth notes, dotted eighth notes, sixteenth notes, quarter notes, eighth note triplets, and syncopated patterns in each