The paper focuses on different concepts about "gesture" that support the musical perfor-mance, relating them with the concepts of "movement" and "bodily gesture" (Madeira & Scar-duelli, 2014) and "affordances" (Gibson, 1979) to then discuss the gesture typology as a basis for a model of cognitive musical analysis (Ben-Tal, 2012; Zbikowski, 2011, Madeira & Scardu-elli, 2015). The paper intends to discuss the idea that physical gestures that constitute the mu-sical performance contain information on the musical expression (Leman et al., 2012; David-son, 2012), associating these concepts to explain how the interaction between instrument-performer determines the understanding of the musician and the result of the artistic produc-tion. The gestural will be approached through the embodied cognition theory (Johnson, 1987) and the instrument through the ecological approach discussed by Windsor and de Bézenac (2012). The review previously mentioned intended to relate concepts to clarify the concept of "gesture" in musical performance. The research recognizes the gesture as an act of the per-former's expressive character while codifying and resulting in cognitive processes. The paper considers that, in today's research, there is an overrating of the gestural directly involved in sound production and negligence in studying the "accompanying" gesture. The paper's cen-tral hypothesis is the importance of this accompanying/expressive gesture in the perfor-mance, which reveals unique information about the musical discourse.