"Drudgeries" by Gordon Mathie
"Extraordinary Scales" by Jona Dunstheimer
Chris Gekker's "Articulation Studies"
Also Mr. Haynie's book inspired by Ernest Williams "Technique Preservation," "Development and Maintenance."
"Scales For Jazz Improvisation" by Dan Haerle. You can use your imagination to create all sorts of drill forms using this book.
And as Mr. Jacobs would say, "Play your scales as if they were Mozart"!
The building blocks of music are scales and chords, is that correct?
Thanks for starting this thread!!!
