A sewing machine includes a needle bar, a needle bar up-and-down movement mechanism that raises and lowers the needle bar, a needle bar up-and-down movement mechanism that raises and lowers the needle bar and a sewing machine motor for driving the needle bar up-and-down mechanism. The sewing machine further includes an operation device that is provided separately from a body of the sewing machine including at least one operation member to be operated by a user that outputs an output signal corresponding to an operation state of the operation member. The sewing machine also includes a command determination device that determines a command that corresponds to the output signal output by the operation device as a determined command and a drive control device that controls a predetermined operation of the sewing machine in accordance with the determined command.