Here I have recorded some A Cappella Choruses over the Blues Progression 12 Separate Times in 12 different key centers. Each one of these is a study in itself and has loads of melodic / harmonic / rhythmic in it worthy of study by all levels of improvisers. These can be viewed as sight reading practice but can also encourage new line development through repititon in growing improvisers. 

For any musician the act of learning new material can always serve as a benchmark to growth. I guarantee that if these studies are learned and incorporated to your skillsets as a player, new musical avenues will be unlocked regardless of your preference in style of music. With slow and fast demo tracks of each study, these transcriptions are a must have for any serious musician and hobbyist alike.