In both Swing and Shuffle pairs of 8th notes are played with the first longer, the second shorter.

In a fast Swing tempo, the inequality may be slight. In a slower 'Heavy Swing' it approaches triplets, the first note twice as long as the second.

Shuffle is triplets. The accompaniment pattern will very likely be triplet patterns with all the notes played. One-and-a-Two-and-a-Three-and-a-Four-and-a....

Swing 'flips off' the beat. Shuffle digs into it. But we're getting into "If you have to ask, you'll never know." (Louis Armstrong) territory now!

No-one argues about what Shuffle is. Swing, however... :-)

In both Swing and Shuffle pairs of 8th notes are played with the first longer, the second shorter.

In a fast Swing tempo, the inequality may be slight. In a slower 'Heavy Swing' it approaches triplets, the first note twice as long as the second.

Shuffle is triplets. The accompaniment pattern will very likely be triplet patterns with all the notes played. One-and-a-Two-and-a-Three-and-a-Four-and-a....

Swing 'flips off' the beat. Shuffle digs into it. But we're getting into "If you have to ask, you'll never know." (Louis Armstrong) territory now!

No-one argues about what Shuffle is. Swing, however... :-)

(A deleted answer offered "Shuffle is on the one, swing is on the two. There's nothing more to it than that." Quite a good way of putting it actually.)

In both Swing and Shuffle pairs of 8th notes are played with the first longer, the second shorter.

In a fast Swing tempo, the inequality may be slight. In a slower 'Heavy Swing' it approaches triplets, the second note twice as long as the first.

Shuffle is triplets. The accompaniment pattern will very likely be triplet patterns with all the notes played. One-and-a-Two-and-a-Three-and-a-Four-and-a....

Swing 'flips off' the beat. Shuffle digs into it. But we're getting into "If you have to ask, you'll never know." (Louis Armstrong) territory now!

No-one argues about what Shuffle is. Swing, however... :-)

In both Swing and Shuffle pairs of 8th notes are played with the first longer, the second shorter.

In a fast Swing tempo, the inequality may be slight. In a slower 'Heavy Swing' it approaches triplets, the first note twice as long as the second.

Shuffle is triplets. The accompaniment pattern will very likely be triplet patterns with all the notes played. One-and-a-Two-and-a-Three-and-a-Four-and-a....

Swing 'flips off' the beat. Shuffle digs into it. But we're getting into "If you have to ask, you'll never know." (Louis Armstrong) territory now!

No-one argues about what Shuffle is. Swing, however... :-)