"The clip focuses on the percussion
section known as JI-Row (I-Row is the snare drum row, and J-Row consists
of the the bass, quads, and cymbals). The first two members down the
ramp (I-1 & I-12) are known as lead-outs. I-1 (on the left facing
the ramp) is the assistant squad leader of I-Row. I-12 (on the right)
is selected from the top snare drum candidates during a special lead-out
drill competition on the final day of band tryouts prior to the
beginning of the season. The squad leader marches in the I-6 position.
I-Row and J-Row, like all other rows, have 12 regular marching members.
In addition, I-Row has two alternate snare drummers, and J-Row has one
alternate for each of the three types of instruments in the row."
