I play a hymn with slightly rhythm variation. One is straight while other one is swing feel. I am not sure its correct.

https://www.box.com/s/8eh7hdf4zcgchz07minu
https://www.box.com/s/3s8gie1ni5yk2to3uvsd

Thank you for comment and advice.
Weiyan

What I hear in your second sample:

. . . one hand hits its note slightly after the other hand.

"Swing" doesn't mean that the left hand, and right hand, have an offset in the time of the downbeat.

"Swing" means that the "strong" beats (in 4/4 time, beats 1 and 3) are played _longer_ than the "weak" beats (2 and 4).

The "swing" sound is _close_ to playing triplets, with beats 1 and 3 worth 2 triplet beats, and beats 2 and 4 worth 1 triplet beat.

. Charles

PS -- I hope somebody can explain this better than I just did!