OptionalprogressA function to allow showing progress long operations. It can be undefined.
The ISFT field to set when writing. If unset, SpessaSynth is written.
This field indicates the last software that was used to edit this sound bank.
If the DMOD chunk should be written. Recommended.
If the XDTA chunk should be written to allow virtually infinite parameters. Recommended.
Options for writing a SoundFont2/3 file.