In this strum, there is a tie between the "&" of beat 2 and beat 3. When there are two 8th notes tied to each other, miss the 2nd of the two. So in this strum, miss on beat 3.
(49k) straight 8ths get realplayer
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"using accompaniment strum #3"
Page 2, basic 4/4 accompaniment strums
Page 4, basic 4/4 accompaniment strums