Electronic music keyboard comprising: - a plurality of keys, - a number of magnetic sensors equal to the number of keys, - a permanent magnet disposed in each key with a magnetic pole facing a respective magnetic sensor, so as to move closer to/away from the magnetic sensor according to the movement of the key; said magnetic sensor being configured so as to output a voltage signal of analog type that is inversely proportional to the distance between the magnet and the magnetic sensor, - an A/D converter connected to each magnetic sensor to digitize said voltage signal generated by the magnetic sensor and to output a plurality of digital values (V1,....Vn) indicative of the position of the key, - a microcontroller connected to said A/D converters and configured to receive said digital values (V1,....Vn) indicative of the position of the key and convert them into key position values; - a digital signal processor connected to said microcontroller to generate at least one sound signal (S*; S1,....Sk), and - an electroacoustic transducer connected to said DSP and configured to receive said at least one sound signal (S*, S1,....Sk) and accordingly generate a music sound, characterized in that each A/D converter is an at least 8-bit converter capable of providing at least 256 digital values (V1,....Vn) indicative of the key position, said microcontroller is configured to convert said at least 256 digital values (V1,....Vn) from each A/D converter into respective at least 256 key position values varying from a rest position to an end stroke position; said microcontroller comprises selection means according to the type of music instrument to be emulated; the selection means are configured so that, from said at least 256 key position values, they select a plurality of useful key position values (P1,...Pm) associated with respective sound signals (S*, S1...Sk) according to the music instrument to be emulated; said microcontroller being configured to output a useful key position value (P1,... Pm) corresponding to the key position when using the keyboard; said digital signal processor being configured to receive said useful key position value (P1,...Pm) emitted by the microcontroller and in accordance emit said sound signal (S*; S1,....Sk) associated with the useful value to the electroacoustic transducer emitting the music sound. - a plurality of keys, - a number of magnetic sensors equal to the number of keys, - a permanent magnet disposed in each key with a magnetic pole facing a respective magnetic sensor, so as to move closer to/away from the magnetic sensor according to the movement of the key; said magnetic sensor being configured so as to output a voltage signal of analog type that is inversely proportional to the distance between the magnet and the magnetic sensor, - an A/D converter connected to each magnetic sensor to digitize said voltage signal generated by the magnetic sensor and to output a plurality of digital values (V1,....Vn) indicative of the position of the key, - a microcontroller connected to said A/D converters and configured to receive said digital values (V1,....Vn) indicative of the position of the key and convert them into key position values; - a digital signal processor connected to said microcontroller to generate at least one sound signal (S*; S1,....Sk), and - an electroacoustic transducer connected to said DSP and configured to receive said at least one sound signal (S*, S1,....Sk) and accordingly generate a music sound, each A/D converter is an at least 8-bit converter capable of providing at least 256 digital values (V1,....Vn) indicative of the key position, said microcontroller is configured to convert said at least 256 digital values (V1,....Vn) from each A/D converter into respective at least 256 key position values varying from a rest position to an end stroke position; said microcontroller comprises selection means according to the type of music instrument to be emulated; the selection means are configured so that, from said at least 256 key position values, they select a plurality of useful key position values (P1,...Pm) associated with respective sound signals (S*, S1...Sk) according to the music instrument to be emulated; said microcontroller being configured to output a useful key position value (P1,... Pm) corresponding to the key position when using the keyboard; said digital signal processor being configured to receive said useful key position value (P1,...Pm) emitted by the microcontroller and in accordance emit said sound signal (S*; S1,....Sk) associated with the useful value to the electroacoustic transducer emitting the music sound.