An electronic system that can be combined with a wind musical instrument with lateral holes comprising a tubular body defining, on the inside, an air column, comprises at least one device for emitting elastic mechanical waves in the body of the instrument, at least one device for receiving elastic mechanical waves positioned to receive the waves emitted by at least one emission device after their propagation in the material of the body of the instrument and designed to provide at least one reception signal characteristic of the waves received and a device for detecting and locating the disturbance induced by an action of closing at least one lateral hole of the instrument, configured to detect and identify a configuration of closing of the lateral holes of the instrument from the analysis of at least one reception signal, the detection and location device positioned removably inside the air column of the instrument.