[Custom(1)] options are displayed when you select [Custom(1)] from the [Select Group ] combo box in the [Instrument] dialog box. You will see the selected instrument in the [ Instrument ] window.

Piano Group This is a sound of instrument that belongs to piano group. Guitar Group This is a sound of instrument that belongs to guitar group. Piano or Guitar Selects the sound of piano or guitar automatically. Wind Group Selects one of the wind instruments automatically. Melody Variation Selects the sound of melody variation automatically. Hard Sound Variation Selects the sound of hard sound variation automatically. Soft Sound Variation Selects the sound of soft sound variation automatically. Electric Variation Selects the sound of electric variation automatically.