1) The first thing you notice is the guiro (a hand-held percussion instrument) playing along with the drums. Like all percussion, this provides movement to the arrangement that's subtle but very real. Maracas enter at the solo at about 2:00.
2) You always hear stories about what a light hitter drummer Charlie Watts is (he's been known to go years between snare drum heads), but that's not true in this song and he leans into it with some muscle.
3) The performance is very solid with great tempo, especially the fills. Many drummers have great time except when it comes to the fills but not in this case.
4) The sound is very 60's, with a lot of room as it was probably miked with only a couple of mikes. You can hear the rhythm guitar leakage, as I believe the basic tracks were only drums, rhythm guitar, percussion and vocals.
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