Abstract: A method and system for personalized acoustic brain wave stimulation of a person. The system comprises an acoustic stimulation device and a remote server. The device comprises a memory able to store operating parameters, acquisition element of a measured signal analysis element in order to assess whether the person is in a state susceptible to stimulation and emission element designed for emitting an acoustic signal. The acquisition element, analysis element and/or emission element operate depending on operating parameters. The device and the remote server comprise means of data transmission for transmitting operating data from the device to the server and transmitting second operating parameters from the server to the device. The remote server comprises means of processing operating data for determining second operating parameters.

Abstract: The invention relates to a musical percussion instrument including a barrel and a membrane, being stretched over at least one of the openings and being in the form of a disc of appropriate material. The membrane has a device to collaborate with a complementary device of the barrel or a support to allow the membrane to be attached to the barrel with the application of tension. This musical instrument is characterized in that the membrane is equipped with devices defined by a series of holes, uniformly distributed at the periphery of the disc and through which a series of ties are intended to be anchored, at least part of the ties being capable of being secured to an element that forms an integral part of the barrel or of a support thereof.