Translated into Italian it would be "drum line", it is in fact a section composed of Snare Drum, Cymbals, Multitenor and Bass Drum.
Pitline
The PitLine, or Front Esemble, is a set of stationary percussion.
This section is generally placed at the edge of the field during drill shows of Marching Band formations.
It's composed by Timpani, Xylophone, Cymbals, Drums Kit
etc...