An operator device for an electronic musical instrument, the operator device comprising: a substrate; a first fixed conductive portion (cA) and a second fixed conductive portion (cB) that are arranged on the substrate and make up a pair of electrodes; a first main conductive pattern (dA) and a second main conductive pattern (dB) that are arranged on the substrate, have a higher conductivity than the first and second fixed conductive portions (cA, cB), and respectively correspond to the first fixed conductive portion (cA) and the second fixed conductive portion (cB); and a movable conductive portion that is configured to move by an operation performed on the operator, and electrically shorts the first fixed conductive portion (cA) and the second fixed conductive portion (cB) upon coming into contact with both of them, wherein the first fixed conductive portion (cA) and the second fixed conductive portion (cB) are each constituted by at least one strip member (tA, tB), and the strip member (tA) constituting the first fixed conductive portion (cA) and the strip member (tB) constituting the second fixed conductive portion (cB) are aligned in parallel and in an alternating manner, and at least two end portions (tAf, tAr) of the strip member (tA) constituting the first fixed conductive portion (cA) are electrically connected to the first main conductive pattern (dA), and at least two end portions (tBf, tBr) of the strip member (tB) constituting the second fixed conductive portion (cB) are electrically connected to the second main conductive pattern (dB), characterized in that in the strip members (ta, tB) that constitute the first fixed conductive portion (cA) and the second fixed conductive portion (cB), an arrangement pitch in an alignment direction of the strip members (tA, tB) is smaller in a central portion in an extending direction of the strip members (tA, tB) than in the two end portions (tAf, tAr, tBf, tBr) of the strip members (tA, tB). a substrate; a first fixed conductive portion (cA) and a second fixed conductive portion (cB) that are arranged on the substrate and make up a pair of electrodes; a first main conductive pattern (dA) and a second main conductive pattern (dB) that are arranged on the substrate, have a higher conductivity than the first and second fixed conductive portions (cA, cB), and respectively correspond to the first fixed conductive portion (cA) and the second fixed conductive portion (cB); and a movable conductive portion that is configured to move by an operation performed on the operator, and electrically shorts the first fixed conductive portion (cA) and the second fixed conductive portion (cB) upon coming into contact with both of them, wherein the first fixed conductive portion (cA) and the second fixed conductive portion (cB) are each constituted by at least one strip member (tA, tB), and the strip member (tA) constituting the first fixed conductive portion (cA) and the strip member (tB) constituting the second fixed conductive portion (cB) are aligned in parallel and in an alternating manner, and at least two end portions (tAf, tAr) of the strip member (tA) constituting the first fixed conductive portion (cA) are electrically connected to the first main conductive pattern (dA), and at least two end portions (tBf, tBr) of the strip member (tB) constituting the second fixed conductive portion (cB) are electrically connected to the second main conductive pattern (dB), characterized in that in the strip members (ta, tB) that constitute the first fixed conductive portion (cA) and the second fixed conductive portion (cB), an arrangement pitch in an alignment direction of the strip members (tA, tB) is smaller in a central portion in an extending direction of the strip members (tA, tB) than in the two end portions (tAf, tAr, tBf, tBr) of the strip members (tA, tB).