Chop chord

[5] As a rhythm guitar and mandolin technique, it is accomplished through chucking, in which the chord is muted by lifting the fretting fingers immediately after strumming, producing a percussive effect.

The offbeat was played on the piano in rhythm and blues "shuffle" style, as heard in songs like Louis Jordan's "It's a Low-Down Dirty Shame" (1942) and Professor Longhair's "Willie Mae" (1949).

It was played on the electric guitar at least as early as 1950 by Robert Kelton on Jimmy McCracklin's "Rockin' All Day."

Alternatively, the bass note can be played and allowed to ring, with the remainder of the chord being "chucked" on the up beat.

[citation needed] Mandolin "chunks", or more commonly known as "chops", rarely include a down-beat strum.