Display control device, display device, method, and storage medium

A method executed by a computer including a processor that controls a light source unit, the method comprising:

• setting one tempo from among a plurality of tempos;
• and
• changing a display form of light emitted from the light source unit and projected on a display section from a third display form to a first display form according to a first beat timing of the set tempo, wherein
• a first period in which the light is projected while being changed between the third display form and the first display form has a constant length regardless of the set tempo, and
• the constant length is a length of less than one beat of a fastest tempo among settable tempos.

A non-transitory recording medium that stores a program for causing a computer that controls a light source unit to execute:

• setting one tempo from among a plurality of tempos;
• and
• changing a display form of light emitted from the light source unit and projected on a display section from a third display form to a first display form according to a first beat timing of the set tempo, wherein
• a first period in which the light is projected while being changed between the third display form and the first display form has a constant length regardless of the set tempo, and
• the constant length is a length of less than one beat of a fastest tempo among settable tempos.