Session players like Tommy,Howard and my music teacher Ralph were among the best of the best 1st call session players and used similiar playing and teaching methods. As matter of fact all three have recorded together on many scores such as Elvis Presleys "Charro" and thousands more. http://www.elvispresley.com.au/elvis/presley/charro.shtml
These cats played the guitar parts that us baby boomers grew up on from tv to albums.
That was the method I was taught as a student when I studied privatley under Ralph Grasso. They all used the Chordal hands on method. Very easy and gets you playing jazz right away.
If you need any info on this method feel free to send me a PM