A fixed magnetic recording device which can suppress dispersions appearing, upon manufacturing, on an effective track width and a longitudinal bias magnetic field of a magnetic head using a hard bias system. In certain embodiments, the system is configured to allow a user to create songs that comprise a plurality of instruments and genres of music into one complete song. The release mechanism has a compression spring positioned between the piston assembly and the bottom of the first cylindrical cutout and the compression spring. The system includes a Calculation Engine with software base classes that implement the common structural and data access features of spreadsheet data, and further implement the operations of common spreadsheet functions and operators. A trim effect compensation circuit is connected between the temperature compensation circuit and the electronic frequency adjust voltage.