Étude, Lá. Something. is a piece of short duration that resemble a study whose main focus is the exploitation of the following gestures: moments where the same note is repeated in a violent way, glissandi between adjacent notes and gestures with chromatic scale wherein their length, direction and first and last notes are considered of greater importance than the simple chromatic scale. There is a contrast between the strict pulse of the moments of repetition of the same note and the freedom of pulsation of the remainder of the piece. A game between the loss of metric sense and the irregularity of meter. The piece is characterized by obsession.