Musical equipment enabling a fixed selection of digitals to sound different musical scales

Musical equipment enabling a fixed selection of manually actuated digitals to sound either the diatonic scale or a six-tone musical scale comprising:

• a musical instrument having a group of eight manually actuated digitals which are identified by a group of eight different digital numbers, one of the digital numbers to each of the digitals;
• when each digital is actuated its digital number being transmitted,
• a sound generator which can receive at least twenty different pitch numbers and which generates a musical tone corresponding to each received pitch number, the sound generator generating a musical interval of N semitones for each pitch number difference of N,
• a translating apparatus which receives the group of eight different digital numbers from the musical instrument and which can transmit at least twenty different pitch numbers to the sound generator, the translating apparatus having a plurality of states of operation in each of which eight of the pitch numbers are associated with the group of eight received digital numbers, one of the pitch numbers to each of the digital numbers, each of the associated pitch numbers being transmitted to the sound generator, the eight associated pitch numbers constituting a series of integers having a sequence of seven positive differences between consecutive numbers of the series, the plurality of states comprising
• a first state wherein the sequence of seven differences is 2-2-1-2-2-2-1,
• a second state wherein each sequence of six differences adds to a total of twelve and the sequence of seven differences adds to a total of thirteen,
• means for selecting from the plurality of states a single state, whereby the group of eight digitals can sound either the diatonic scale or a six-tone musical scale.