PROBLEM TO BE SOLVED: To provide a musical sound generation instructing device capable of realizing an after-touch function in a pad or the like.;SOLUTION: A musical sound generation instructing device according to the invention has a processing part that executes: first determination processing of determining whether or not a level of a pressing signal generated corresponding to a pressing operation to an operation part exceeds a first threshold; sound generation instructing processing of instructing a sound source to generate musical sound, after it is determined through the first determination processing that the level of the pressing signal exceeds the first threshold; second determination processing of determining whether or not a minimum value appears in a change in the level of the pressing signal, in a state where it is determined through the first determination processing that the level of the pressing signal exceeds the first threshold; and after-touch processing of providing the generated musical sound with an after-touch effect according to the change in the level of the pressing signal, after it is determined through the second determination processing that the minimum value appears.;SELECTED DRAWING: Figure 2;COPYRIGHT: (C)2017,JPO&INPIT
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