This excerpt is from the every time played page for
Remington Ride. The first column indicates the date of a show
in which Remington Ride was played. Clicking on the date will link you
to the setlist for that show. Then the set the
song was played in is indicated and the sequence of the song within that
set. (An "a" after the set number indicates an acoustic set.) So a "1"
followed by "3/12" means the song (in this case, Remington
Ride), was the third song played in the first set, and that there were
12 songs total in that set. The next number is the gap, which counts the
number of shows since the last time this song was played.
The gap listed for the first time the song is played is the number of shows
which were played before the one in which the song debuted.
The last two columns indicate the song played before the song in question,
and the song played after the song in question, respectively. If it was a
set opener, there will be an entry starting with the letters "op" and followed
by the set number (or e for encore) in the first of these columns; if the song
closed a set, there will be a "cl" followed by a set number (or e for encore) in
the second of these columns. Clicking on any song title will link you to the
every time played page for that song.