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device for obtaining difference of time synchronous to the performance of a musical performance in electronic devices which generate succession of events that imitated percussion instruments or soundfrequencies defined, usually called electronic batteries, or units ritmiche.o units for the production of musical accompagnamenti automatic
device for obtaining difference of time synchronous to the performance of a musical performance in electronic devices which generate succession of events that imitated percussion instruments or soundfrequencies defined, usually called electronic batteries, or units ritmiche.o units for the production of musical accompagnamenti automatic
