Abstract: Generator for producing the tones of a musical scale in electronic musical instruments, one master oscillator driving a chain of frequency dividers in a manner such that at the output of each divider a tone is produced which is lower by a semi-tone than the tone at the input of the divider, the final divider of the chain being connected to the input of the first divider via a frequency multiplier which multiplies by a factor of 2, while the master oscillator can be connected to any one of the dividers, in which case the connection of this divider to the preceding one is broken in order to permit transposition without the use of additional dividers.