"Crosspicking" is a word that first appeared in the 1970's to describe the flat picking technique created by Jesse McReynolds on mandolin, and later adapted to guitar by George Shuffler.
The technique is an emulation of a three-finger "Scruggs-style" banjo roll with a single flat pick. The picking pattern covers three adjacent strings and incorporates two consecutive direction pick strokes. These consecutive down or consecutive up strokes, in the context of eighth-notes in quarter time (4/4 or 3/4), create a very specific syncopation by placing down (strong) strokes on weak beats.
Syncopation is the defining characteristic of crosspicking.
Jesse McReynolds' default pattern is based on the backward roll, DUU on string pattern 3 1 2. He most commonly plays a 3+3+2 note grouping for each 4/4 measure (DUU DUU DU on string pattern 312 312 31), creating syncopation by hitting a down stroke on the "and of 2"..... George Shuffler used the forward roll on guitar, DDU on 3 2 1. He would routinely keep a three-note roll going across the measure (3+3+3+3, etc.), creating syncopation in different places ("and of 2", "and of 1", "and of 4" etc.). This is a rough generalization, both players had many variations on the above description, but their respective styles were always based in these patterns. You will rarely, if ever, find cases where they switched up the rolls. Jesse is rooted in the backward roll, George always used the forward roll.
Cross string picking (CSP), for lack of a better term, is the emulation of a crosspicking roll while using alternating pick direction. CSP happened after the McReynolds / Shuffler roll. It emulates the sound, but does not reproduce the syncopation created by the consecutive stroke picking patterns.
Most flatpickers ingrain alternating pick direction as a default approach to playing smoothly across strings, so it is no surprise that many attempting to emulate the crosspicking sound would end up using CSP (either out of out of a lack of knowledge of the technique, or for ease of execution). The problem is that many players adopt the term without truly adopting the technique, which has "muddied the water" so to speak with the definition. CSP yields a very different articulation than true crosspicking, and creates no syncopation. This is the main case for distinction between the approaches. The word crosspicking was created and first used to describe the specific McReynolds/Shuffler approach, but today it's more often used as a "catch all" phrase for anytime two or more strings are ringing simultaneously on a mandolin or guitar. Even though there are similarities, a three note pattern across strings with alternate pick direction will sound nothing like a crosspicking roll. Here's what the late, great John McGann had to say about it:
McReynolds-style, Shuffler-style, and alternate picking across strings can all sound very similar to one another, but they are all three very different in execution. The muscle memory required for each pattern is completely unique. Jesse and George primarily concentrated on their own respective methods, that's how they achieved such a high level of speed and fluidity. Most of the people I know who have developed true crosspicking to a high level tend to stick in one camp or the other. Not saying it's impossible to intermingle the styles, but it's extremely rare in real world players. This is the main reason that I do not advocate Mickey Cochran's (RIP) Crosspicking Techniques book as an intro to the style. His approach intermingles forward, backward, and alternating techniques, sometimes within the same arrangement. Mixing up patterns within the same solo/arrangement is not conducive to developing speed or consistency, and certainly does not represent the way that the originators of the style approached the technique. There are ideas and patterns in the book that would make for a nice addendum to someone already versed in a specific roll, but the book does not show a proper method for learning to crosspicking from the ground up. Unfortunately, Mickey's book is the only one in publication today with the word "Crosspicking" in the title, therefore, most people think it's the authority. If you truly want to learn McReynolds-style crosspicking, I recommend the out of print Jesse McReynolds book by Andy Statman, or Bluegrass Mandolin by Jack Tottle.
I'll leave you with excerpts from another John McGann quote:
And, as always, YMMV.
Sources:
Bluegrass Masters: Jesse McReynolds, by Andy Statman
Blugrass Mandolin, by Jack Tottle
John McGann's old
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Mandolin Café Forums
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