I find that I tend to that when I pratice with guitarist/singer that they think of chord change timing differently then I do. Since they are sing they think of the chord changes in relation to the lyrics. I find that I have to count while the dude is playing and singing, and write things out in bars before I get a good feel for the song. Once I put things down on paper in bars I pick it up fast. Perhaps it is inexperience, but perhaps it is the way my mind works. Any thought or opinions on this?